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            &lt;td colspan="1" style="background-color:#E6FAFF;;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;Class A&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;$39&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;white-space:nowrap;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;0.79%&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
      &lt;/table&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="c_7817_duration_WesternAssetCoreBondFund_ClassA_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="ixv-40944"
      unitRef="USD">39</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="c_7817_duration_WesternAssetCoreBondFund_ClassA_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="foot-7817_842217-1021"
      unitRef="RATIO">0.0079</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="c_7817_duration_WesternAssetCoreBondFund_ClassA_2026-01-01_2026-06-30Member"
      id="ixv-202"
      xml:lang="en-US">&lt;div&gt;&lt;span style="text-transform:uppercase;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"&gt;&lt;b&gt;KEY FUND STATISTICS &lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;(as of &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;June 30, 2026)&lt;/span&gt;&lt;/div&gt;&lt;div&gt;
      &lt;table cellspacing="0" style="width:98%;cellspacing:0;border-top:1.5pt solid #6B6B6B;margin-left:7.75pt;border-bottom:1.5pt solid #6B6B6B;margin-top:10px;"&gt;
         &lt;tr style="height:1px;"&gt;
            &lt;td style="height:1px;width:74.41007194244604%;"&gt;&lt;/td&gt;
            &lt;td style="height:1px;width:25.58992805755396%;"&gt;&lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Total Net Assets&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;$1,664,972,254&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Total Number of Portfolio Holdings (excludes derivatives, except purchased options, if any)&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;809&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Portfolio Turnover Rate&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="white-space:nowrap;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;55%&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
      &lt;/table&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="c_7817_instant_WesternAssetCoreBondFund_ClassA_2026-06-30Member"
      decimals="INF"
      id="ixv-40946"
      unitRef="USD">1664972254</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="c_7817_instant_WesternAssetCoreBondFund_ClassA_2026-06-30Member"
      decimals="INF"
      id="ixv-40947"
      unitRef="UNIT">809</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="c_7817_duration_WesternAssetCoreBondFund_ClassA_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="ixv-40948"
      unitRef="RATIO">0.55</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="c_7817_duration_WesternAssetCoreBondFund_ClassA_2026-01-01_2026-06-30Member"
      id="foot-7817_842236-1011"
      xml:lang="en-US">&lt;div&gt;&lt;span style="text-transform:uppercase;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"&gt;&lt;b&gt;WHAT DID THE FUND INVEST IN? &lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;(as of &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;June 30, 2026)&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;b&gt;Portfolio Composition&lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;sup&gt;*&lt;/sup&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;b&gt; &lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;b&gt;(% of Total Investments)&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;img alt="image" src="ts7817img004.jpg" style="width:96.41294838145232%"/&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:UpdProspectusWebAddress
      contextRef="c_7817_duration_WesternAssetCoreBondFund_ClassA_2026-01-01_2026-06-30Member"
      id="ixv-294"
      xml:lang="en-US">https://www.franklintempleton.com/regulatory-fund-documents</oef:UpdProspectusWebAddress>
    <oef:PctOfTotalInv
      contextRef="c_7817_instant_WesternAssetCoreBondFund_ClassA_2026-06-30_2604Member"
      decimals="INF"
      id="ixv-40949"
      unitRef="RATIO">0.343</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7817_instant_WesternAssetCoreBondFund_ClassA_2026-06-30_3985Member"
      decimals="INF"
      id="ixv-40950"
      unitRef="RATIO">0.232</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7817_instant_WesternAssetCoreBondFund_ClassA_2026-06-30_2661Member"
      decimals="INF"
      id="ixv-40951"
      unitRef="RATIO">0.177</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7817_instant_WesternAssetCoreBondFund_ClassA_2026-06-30_2652Member"
      decimals="INF"
      id="ixv-40952"
      unitRef="RATIO">0.135</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7817_instant_WesternAssetCoreBondFund_ClassA_2026-06-30_3979Member"
      decimals="INF"
      id="ixv-40953"
      unitRef="RATIO">0.094</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7817_instant_WesternAssetCoreBondFund_ClassA_2026-06-30_3984Member"
      decimals="INF"
      id="ixv-40954"
      unitRef="RATIO">0.012</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7817_instant_WesternAssetCoreBondFund_ClassA_2026-06-30_3418Member"
      decimals="INF"
      id="ixv-40955"
      unitRef="RATIO">0.007</oef:PctOfTotalInv>
    <oef:FundName
      contextRef="c_7814_duration_WesternAssetCoreBondFund_ClassC_2026-01-01_2026-06-30Member"
      id="ixv-333"
      xml:lang="en-US">Western Asset Core Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="c_7814_duration_WesternAssetCoreBondFund_ClassC_2026-01-01_2026-06-30Member"
      id="ixv-339"
      xml:lang="en-US">Class C</oef:ClassName>
    <dei:TradingSymbol
      contextRef="c_7814_duration_WesternAssetCoreBondFund_ClassC_2026-01-01_2026-06-30Member"
      id="ixv-342"
      xml:lang="en-US">WABCX</dei:TradingSymbol>
    <dei:DocumentPeriodEndDate
      contextRef="c_7817_duration_WesternAssetCoreBondFund_2026-01-01_2026-06-30Member"
      id="ixv-348"
      xml:lang="en-US">2026-06-30</dei:DocumentPeriodEndDate>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="c_7814_duration_WesternAssetCoreBondFund_ClassC_2026-01-01_2026-06-30Member"
      id="ixv-355"
      xml:lang="en-US">&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;This &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;semi-annual shareholder report&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt; contains important information about &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;Western Asset Core Bond Fund for the period&#160;&#x2009;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;January 1, 2026, &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;to &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;June 30, 2026.&lt;/span&gt;</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="c_7817_duration_WesternAssetCoreBondFund_2026-01-01_2026-06-30Member"
      id="ixv-357"
      xml:lang="en-US">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="c_7814_duration_WesternAssetCoreBondFund_ClassC_2026-01-01_2026-06-30Member"
      id="ixv-365"
      xml:lang="en-US">&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;You can find additional information about the Fund at &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;https://www.franklintempleton.com/regulatory-fund-documents&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;. You can also &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;request this information by contacting us at &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;877-6LM-FUND/656-3863&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;.&lt;/span&gt;</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="c_7814_duration_WesternAssetCoreBondFund_ClassC_2026-01-01_2026-06-30Member"
      id="ixv-367"
      xml:lang="en-US">https://www.franklintempleton.com/regulatory-fund-documents</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="c_7814_duration_WesternAssetCoreBondFund_ClassC_2026-01-01_2026-06-30Member"
      id="ixv-371"
      xml:lang="en-US">877-6LM-FUND/656-3863</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="c_7814_duration_WesternAssetCoreBondFund_ClassC_2026-01-01_2026-06-30Member"
      id="foot-7814_841931-1011"
      xml:lang="en-US">&lt;div&gt;&lt;span style="text-transform:uppercase;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"&gt;&lt;b&gt;WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? &lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;(based on a hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;&lt;div&gt;
      &lt;table cellspacing="0" style="width:98%;cellspacing:0;border-top:1.5pt solid #E6FAFF;border-left:1.5pt solid #E6FAFF;  border-right:1.5pt solid #E6FAFF;  border-bottom:1.5pt solid #E6FAFF; margin-left:7.9pt;"&gt;
         &lt;tr style="height:1px;"&gt;
            &lt;td style="height:1px;width:50%;background-color:#E6FAFF;"&gt;&lt;/td&gt;
            &lt;td style="height:1px;width:22.33812949640288%;background-color:#E6FAFF;"&gt;&lt;/td&gt;
            &lt;td style="height:1px;width:27.661870503597125%;background-color:#E6FAFF;"&gt;&lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;border-bottom:1.5pt solid #1447FF;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;Class Name&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;border-bottom:1.5pt solid #1447FF;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;Costs of a $10,000 &lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;investment&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;border-bottom:1.5pt solid #1447FF;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;Costs paid as a percentage of a &lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;$10,000 investment&lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;sup&gt;*&lt;/sup&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:7.5pt;;"&gt;&lt;sup&gt;,&lt;/sup&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;sup&gt;&#x2020;&lt;/sup&gt;&lt;/span&gt;
               &lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;Class C&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;$76&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;white-space:nowrap;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;1.53%&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
      &lt;/table&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="c_7814_duration_WesternAssetCoreBondFund_ClassC_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="ixv-40956"
      unitRef="USD">76</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="c_7814_duration_WesternAssetCoreBondFund_ClassC_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="foot-7814_841931-1021"
      unitRef="RATIO">0.0153</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="c_7814_duration_WesternAssetCoreBondFund_ClassC_2026-01-01_2026-06-30Member"
      id="ixv-445"
      xml:lang="en-US">&lt;div&gt;&lt;span style="text-transform:uppercase;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"&gt;&lt;b&gt;KEY FUND STATISTICS &lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;(as of &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;June 30, 2026)&lt;/span&gt;&lt;/div&gt;&lt;div&gt;
      &lt;table cellspacing="0" style="width:98%;cellspacing:0;border-top:1.5pt solid #6B6B6B;margin-left:7.75pt;border-bottom:1.5pt solid #6B6B6B;margin-top:10px;"&gt;
         &lt;tr style="height:1px;"&gt;
            &lt;td style="height:1px;width:74.41007194244604%;"&gt;&lt;/td&gt;
            &lt;td style="height:1px;width:25.58992805755396%;"&gt;&lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Total Net Assets&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;$1,664,972,254&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Total Number of Portfolio Holdings (excludes derivatives, except purchased options, if any)&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;809&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Portfolio Turnover Rate&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="white-space:nowrap;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;55%&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
      &lt;/table&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="c_7814_instant_WesternAssetCoreBondFund_ClassC_2026-06-30Member"
      decimals="INF"
      id="ixv-40958"
      unitRef="USD">1664972254</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="c_7814_instant_WesternAssetCoreBondFund_ClassC_2026-06-30Member"
      decimals="INF"
      id="ixv-40959"
      unitRef="UNIT">809</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="c_7814_duration_WesternAssetCoreBondFund_ClassC_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="ixv-40960"
      unitRef="RATIO">0.55</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="c_7814_duration_WesternAssetCoreBondFund_ClassC_2026-01-01_2026-06-30Member"
      id="foot-7814_841938-1011"
      xml:lang="en-US">&lt;div&gt;&lt;span style="text-transform:uppercase;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"&gt;&lt;b&gt;WHAT DID THE FUND INVEST IN? &lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;(as of &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;June 30, 2026)&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;b&gt;Portfolio Composition&lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;sup&gt;*&lt;/sup&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;b&gt; &lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;b&gt;(% of Total Investments)&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;img alt="image" src="ts7814img004.jpg" style="width:96.41294838145232%"/&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:UpdProspectusWebAddress
      contextRef="c_7814_duration_WesternAssetCoreBondFund_ClassC_2026-01-01_2026-06-30Member"
      id="ixv-537"
      xml:lang="en-US">https://www.franklintempleton.com/regulatory-fund-documents</oef:UpdProspectusWebAddress>
    <oef:PctOfTotalInv
      contextRef="c_7814_instant_WesternAssetCoreBondFund_ClassC_2026-06-30_2604Member"
      decimals="INF"
      id="ixv-40961"
      unitRef="RATIO">0.343</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7814_instant_WesternAssetCoreBondFund_ClassC_2026-06-30_3985Member"
      decimals="INF"
      id="ixv-40962"
      unitRef="RATIO">0.232</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7814_instant_WesternAssetCoreBondFund_ClassC_2026-06-30_5228Member"
      decimals="INF"
      id="ixv-40963"
      unitRef="RATIO">0.177</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7814_instant_WesternAssetCoreBondFund_ClassC_2026-06-30_3402Member"
      decimals="INF"
      id="ixv-40964"
      unitRef="RATIO">0.135</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7814_instant_WesternAssetCoreBondFund_ClassC_2026-06-30_3979Member"
      decimals="INF"
      id="ixv-40965"
      unitRef="RATIO">0.094</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7814_instant_WesternAssetCoreBondFund_ClassC_2026-06-30_3984Member"
      decimals="INF"
      id="ixv-40966"
      unitRef="RATIO">0.012</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7814_instant_WesternAssetCoreBondFund_ClassC_2026-06-30_3418Member"
      decimals="INF"
      id="ixv-40967"
      unitRef="RATIO">0.007</oef:PctOfTotalInv>
    <oef:FundName
      contextRef="c_7820_duration_WesternAssetCoreBondFund_ClassC1_2026-01-01_2026-06-30Member"
      id="ixv-576"
      xml:lang="en-US">Western Asset Core Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="c_7820_duration_WesternAssetCoreBondFund_ClassC1_2026-01-01_2026-06-30Member"
      id="ixv-582"
      xml:lang="en-US">Class C1</oef:ClassName>
    <dei:TradingSymbol
      contextRef="c_7820_duration_WesternAssetCoreBondFund_ClassC1_2026-01-01_2026-06-30Member"
      id="ixv-585"
      xml:lang="en-US">LWACX</dei:TradingSymbol>
    <dei:DocumentPeriodEndDate
      contextRef="c_7817_duration_WesternAssetCoreBondFund_2026-01-01_2026-06-30Member"
      id="ixv-591"
      xml:lang="en-US">2026-06-30</dei:DocumentPeriodEndDate>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="c_7820_duration_WesternAssetCoreBondFund_ClassC1_2026-01-01_2026-06-30Member"
      id="ixv-598"
      xml:lang="en-US">&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;This &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;semi-annual shareholder report&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt; contains important information about &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;Western Asset Core Bond Fund for the period&#160;&#x2009;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;January 1, 2026, &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;to &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;June 30, 2026.&lt;/span&gt;</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="c_7817_duration_WesternAssetCoreBondFund_2026-01-01_2026-06-30Member"
      id="ixv-600"
      xml:lang="en-US">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="c_7820_duration_WesternAssetCoreBondFund_ClassC1_2026-01-01_2026-06-30Member"
      id="ixv-608"
      xml:lang="en-US">&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;You can find additional information about the Fund at &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;https://www.franklintempleton.com/regulatory-fund-documents&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;. You can also &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;request this information by contacting us at &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;877-6LM-FUND/656-3863&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;.&lt;/span&gt;</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="c_7820_duration_WesternAssetCoreBondFund_ClassC1_2026-01-01_2026-06-30Member"
      id="ixv-610"
      xml:lang="en-US">https://www.franklintempleton.com/regulatory-fund-documents</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="c_7820_duration_WesternAssetCoreBondFund_ClassC1_2026-01-01_2026-06-30Member"
      id="ixv-614"
      xml:lang="en-US">877-6LM-FUND/656-3863</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="c_7820_duration_WesternAssetCoreBondFund_ClassC1_2026-01-01_2026-06-30Member"
      id="foot-7820_842431-1011"
      xml:lang="en-US">&lt;div&gt;&lt;span style="text-transform:uppercase;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"&gt;&lt;b&gt;WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? &lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;(based on a hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;&lt;div&gt;
      &lt;table cellspacing="0" style="width:98%;cellspacing:0;border-top:1.5pt solid #E6FAFF;border-left:1.5pt solid #E6FAFF;  border-right:1.5pt solid #E6FAFF;  border-bottom:1.5pt solid #E6FAFF; margin-left:7.9pt;"&gt;
         &lt;tr style="height:1px;"&gt;
            &lt;td style="height:1px;width:50%;background-color:#E6FAFF;"&gt;&lt;/td&gt;
            &lt;td style="height:1px;width:22.33812949640288%;background-color:#E6FAFF;"&gt;&lt;/td&gt;
            &lt;td style="height:1px;width:27.661870503597125%;background-color:#E6FAFF;"&gt;&lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;border-bottom:1.5pt solid #1447FF;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;Class Name&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;border-bottom:1.5pt solid #1447FF;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;Costs of a $10,000 &lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;investment&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;border-bottom:1.5pt solid #1447FF;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;Costs paid as a percentage of a &lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;$10,000 investment&lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;sup&gt;*&lt;/sup&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:7.5pt;;"&gt;&lt;sup&gt;,&lt;/sup&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;sup&gt;&#x2020;&lt;/sup&gt;&lt;/span&gt;
               &lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;Class C1&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;$71&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;white-space:nowrap;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;1.42%&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
      &lt;/table&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="c_7820_duration_WesternAssetCoreBondFund_ClassC1_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="ixv-40968"
      unitRef="USD">71</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="c_7820_duration_WesternAssetCoreBondFund_ClassC1_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="foot-7820_842431-1021"
      unitRef="RATIO">0.0142</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="c_7820_duration_WesternAssetCoreBondFund_ClassC1_2026-01-01_2026-06-30Member"
      id="ixv-688"
      xml:lang="en-US">&lt;div&gt;&lt;span style="text-transform:uppercase;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"&gt;&lt;b&gt;KEY FUND STATISTICS &lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;(as of &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;June 30, 2026)&lt;/span&gt;&lt;/div&gt;&lt;div&gt;
      &lt;table cellspacing="0" style="width:98%;cellspacing:0;border-top:1.5pt solid #6B6B6B;margin-left:7.75pt;border-bottom:1.5pt solid #6B6B6B;margin-top:10px;"&gt;
         &lt;tr style="height:1px;"&gt;
            &lt;td style="height:1px;width:74.41007194244604%;"&gt;&lt;/td&gt;
            &lt;td style="height:1px;width:25.58992805755396%;"&gt;&lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Total Net Assets&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;$1,664,972,254&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Total Number of Portfolio Holdings (excludes derivatives, except purchased options, if any)&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;809&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Portfolio Turnover Rate&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="white-space:nowrap;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;55%&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
      &lt;/table&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="c_7820_instant_WesternAssetCoreBondFund_ClassC1_2026-06-30Member"
      decimals="INF"
      id="ixv-40970"
      unitRef="USD">1664972254</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="c_7820_instant_WesternAssetCoreBondFund_ClassC1_2026-06-30Member"
      decimals="INF"
      id="ixv-40971"
      unitRef="UNIT">809</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="c_7820_duration_WesternAssetCoreBondFund_ClassC1_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="ixv-40972"
      unitRef="RATIO">0.55</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="c_7820_duration_WesternAssetCoreBondFund_ClassC1_2026-01-01_2026-06-30Member"
      id="foot-7820_842438-1011"
      xml:lang="en-US">&lt;div&gt;&lt;span style="text-transform:uppercase;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"&gt;&lt;b&gt;WHAT DID THE FUND INVEST IN? &lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;(as of &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;June 30, 2026)&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;b&gt;Portfolio Composition&lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;sup&gt;*&lt;/sup&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;b&gt; &lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;b&gt;(% of Total Investments)&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;img alt="image" src="ts7820img004.jpg" style="width:96.41294838145232%"/&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:UpdProspectusWebAddress
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      id="ixv-780"
      xml:lang="en-US">https://www.franklintempleton.com/regulatory-fund-documents</oef:UpdProspectusWebAddress>
    <oef:PctOfTotalInv
      contextRef="c_7820_instant_WesternAssetCoreBondFund_ClassC1_2026-06-30_2604Member"
      decimals="INF"
      id="ixv-40973"
      unitRef="RATIO">0.343</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7820_instant_WesternAssetCoreBondFund_ClassC1_2026-06-30_3985Member"
      decimals="INF"
      id="ixv-40974"
      unitRef="RATIO">0.232</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7820_instant_WesternAssetCoreBondFund_ClassC1_2026-06-30_5228Member"
      decimals="INF"
      id="ixv-40975"
      unitRef="RATIO">0.177</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7820_instant_WesternAssetCoreBondFund_ClassC1_2026-06-30_3402Member"
      decimals="INF"
      id="ixv-40976"
      unitRef="RATIO">0.135</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7820_instant_WesternAssetCoreBondFund_ClassC1_2026-06-30_3979Member"
      decimals="INF"
      id="ixv-40977"
      unitRef="RATIO">0.094</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7820_instant_WesternAssetCoreBondFund_ClassC1_2026-06-30_3984Member"
      decimals="INF"
      id="ixv-40978"
      unitRef="RATIO">0.012</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7820_instant_WesternAssetCoreBondFund_ClassC1_2026-06-30_3418Member"
      decimals="INF"
      id="ixv-40979"
      unitRef="RATIO">0.007</oef:PctOfTotalInv>
    <oef:FundName
      contextRef="c_7812_duration_WesternAssetCoreBondFund_ClassFI_2026-01-01_2026-06-30Member"
      id="ixv-819"
      xml:lang="en-US">Western Asset Core Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="c_7812_duration_WesternAssetCoreBondFund_ClassFI_2026-01-01_2026-06-30Member"
      id="ixv-825"
      xml:lang="en-US">Class FI</oef:ClassName>
    <dei:TradingSymbol
      contextRef="c_7812_duration_WesternAssetCoreBondFund_ClassFI_2026-01-01_2026-06-30Member"
      id="ixv-828"
      xml:lang="en-US">WAPIX</dei:TradingSymbol>
    <dei:DocumentPeriodEndDate
      contextRef="c_7817_duration_WesternAssetCoreBondFund_2026-01-01_2026-06-30Member"
      id="ixv-834"
      xml:lang="en-US">2026-06-30</dei:DocumentPeriodEndDate>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="c_7812_duration_WesternAssetCoreBondFund_ClassFI_2026-01-01_2026-06-30Member"
      id="ixv-841"
      xml:lang="en-US">&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;This &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;semi-annual shareholder report&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt; contains important information about &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;Western Asset Core Bond Fund for the period&#160;&#x2009;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;January 1, 2026, &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;to &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;June 30, 2026.&lt;/span&gt;</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="c_7817_duration_WesternAssetCoreBondFund_2026-01-01_2026-06-30Member"
      id="ixv-843"
      xml:lang="en-US">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="c_7812_duration_WesternAssetCoreBondFund_ClassFI_2026-01-01_2026-06-30Member"
      id="ixv-851"
      xml:lang="en-US">&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;You can find additional information about the Fund at &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;https://www.franklintempleton.com/regulatory-fund-documents&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;. You can also &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;request this information by contacting us at &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;877-6LM-FUND/656-3863&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;.&lt;/span&gt;</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="c_7812_duration_WesternAssetCoreBondFund_ClassFI_2026-01-01_2026-06-30Member"
      id="ixv-853"
      xml:lang="en-US">https://www.franklintempleton.com/regulatory-fund-documents</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="c_7812_duration_WesternAssetCoreBondFund_ClassFI_2026-01-01_2026-06-30Member"
      id="ixv-857"
      xml:lang="en-US">877-6LM-FUND/656-3863</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="c_7812_duration_WesternAssetCoreBondFund_ClassFI_2026-01-01_2026-06-30Member"
      id="foot-7812_841765-1011"
      xml:lang="en-US">&lt;div&gt;&lt;span style="text-transform:uppercase;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"&gt;&lt;b&gt;WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? &lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;(based on a hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;&lt;div&gt;
      &lt;table cellspacing="0" style="width:98%;cellspacing:0;border-top:1.5pt solid #E6FAFF;border-left:1.5pt solid #E6FAFF;  border-right:1.5pt solid #E6FAFF;  border-bottom:1.5pt solid #E6FAFF; margin-left:7.9pt;"&gt;
         &lt;tr style="height:1px;"&gt;
            &lt;td style="height:1px;width:50%;background-color:#E6FAFF;"&gt;&lt;/td&gt;
            &lt;td style="height:1px;width:22.33812949640288%;background-color:#E6FAFF;"&gt;&lt;/td&gt;
            &lt;td style="height:1px;width:27.661870503597125%;background-color:#E6FAFF;"&gt;&lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;border-bottom:1.5pt solid #1447FF;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;Class Name&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;border-bottom:1.5pt solid #1447FF;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;Costs of a $10,000 &lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;investment&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;border-bottom:1.5pt solid #1447FF;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;Costs paid as a percentage of a &lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;$10,000 investment&lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;sup&gt;*&lt;/sup&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:7.5pt;;"&gt;&lt;sup&gt;,&lt;/sup&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;sup&gt;&#x2020;&lt;/sup&gt;&lt;/span&gt;
               &lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;Class FI&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;$40&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;white-space:nowrap;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;0.81%&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
      &lt;/table&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="c_7812_duration_WesternAssetCoreBondFund_ClassFI_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="ixv-40980"
      unitRef="USD">40</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="c_7812_duration_WesternAssetCoreBondFund_ClassFI_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="foot-7812_841765-1021"
      unitRef="RATIO">0.0081</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="c_7812_duration_WesternAssetCoreBondFund_ClassFI_2026-01-01_2026-06-30Member"
      id="ixv-931"
      xml:lang="en-US">&lt;div&gt;&lt;span style="text-transform:uppercase;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"&gt;&lt;b&gt;KEY FUND STATISTICS &lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;(as of &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;June 30, 2026)&lt;/span&gt;&lt;/div&gt;&lt;div&gt;
      &lt;table cellspacing="0" style="width:98%;cellspacing:0;border-top:1.5pt solid #6B6B6B;margin-left:7.75pt;border-bottom:1.5pt solid #6B6B6B;margin-top:10px;"&gt;
         &lt;tr style="height:1px;"&gt;
            &lt;td style="height:1px;width:74.41007194244604%;"&gt;&lt;/td&gt;
            &lt;td style="height:1px;width:25.58992805755396%;"&gt;&lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Total Net Assets&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;$1,664,972,254&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Total Number of Portfolio Holdings (excludes derivatives, except purchased options, if any)&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;809&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Portfolio Turnover Rate&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="white-space:nowrap;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;55%&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
      &lt;/table&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="c_7812_instant_WesternAssetCoreBondFund_ClassFI_2026-06-30Member"
      decimals="INF"
      id="ixv-40982"
      unitRef="USD">1664972254</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="c_7812_instant_WesternAssetCoreBondFund_ClassFI_2026-06-30Member"
      decimals="INF"
      id="ixv-40983"
      unitRef="UNIT">809</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="c_7812_duration_WesternAssetCoreBondFund_ClassFI_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="ixv-40984"
      unitRef="RATIO">0.55</us-gaap:InvestmentCompanyPortfolioTurnover>
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      xml:lang="en-US">&lt;div&gt;&lt;span style="text-transform:uppercase;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"&gt;&lt;b&gt;WHAT DID THE FUND INVEST IN? &lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;(as of &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;June 30, 2026)&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;b&gt;Portfolio Composition&lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;sup&gt;*&lt;/sup&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;b&gt; &lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;b&gt;(% of Total Investments)&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;img alt="image" src="ts7812img004.jpg" style="width:96.41294838145232%"/&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:UpdProspectusWebAddress
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      xml:lang="en-US">https://www.franklintempleton.com/regulatory-fund-documents</oef:UpdProspectusWebAddress>
    <oef:PctOfTotalInv
      contextRef="c_7812_instant_WesternAssetCoreBondFund_ClassFI_2026-06-30_2604Member"
      decimals="INF"
      id="ixv-40985"
      unitRef="RATIO">0.343</oef:PctOfTotalInv>
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      contextRef="c_7812_instant_WesternAssetCoreBondFund_ClassFI_2026-06-30_3985Member"
      decimals="INF"
      id="ixv-40986"
      unitRef="RATIO">0.232</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7812_instant_WesternAssetCoreBondFund_ClassFI_2026-06-30_5228Member"
      decimals="INF"
      id="ixv-40987"
      unitRef="RATIO">0.177</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7812_instant_WesternAssetCoreBondFund_ClassFI_2026-06-30_3402Member"
      decimals="INF"
      id="ixv-40988"
      unitRef="RATIO">0.135</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7812_instant_WesternAssetCoreBondFund_ClassFI_2026-06-30_5229Member"
      decimals="INF"
      id="ixv-40989"
      unitRef="RATIO">0.094</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7812_instant_WesternAssetCoreBondFund_ClassFI_2026-06-30_3984Member"
      decimals="INF"
      id="ixv-40990"
      unitRef="RATIO">0.012</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7812_instant_WesternAssetCoreBondFund_ClassFI_2026-06-30_3418Member"
      decimals="INF"
      id="ixv-40991"
      unitRef="RATIO">0.007</oef:PctOfTotalInv>
    <oef:FundName
      contextRef="c_7813_duration_WesternAssetCoreBondFund_ClassR_2026-01-01_2026-06-30Member"
      id="ixv-1062"
      xml:lang="en-US">Western Asset Core Bond Fund</oef:FundName>
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      contextRef="c_7813_duration_WesternAssetCoreBondFund_ClassR_2026-01-01_2026-06-30Member"
      id="ixv-1068"
      xml:lang="en-US">Class R</oef:ClassName>
    <dei:TradingSymbol
      contextRef="c_7813_duration_WesternAssetCoreBondFund_ClassR_2026-01-01_2026-06-30Member"
      id="ixv-1071"
      xml:lang="en-US">WABRX</dei:TradingSymbol>
    <dei:DocumentPeriodEndDate
      contextRef="c_7817_duration_WesternAssetCoreBondFund_2026-01-01_2026-06-30Member"
      id="ixv-1077"
      xml:lang="en-US">2026-06-30</dei:DocumentPeriodEndDate>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="c_7813_duration_WesternAssetCoreBondFund_ClassR_2026-01-01_2026-06-30Member"
      id="ixv-1084"
      xml:lang="en-US">&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;This &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;semi-annual shareholder report&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt; contains important information about &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;Western Asset Core Bond Fund for the period&#160;&#x2009;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;January 1, 2026, &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;to &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;June 30, 2026.&lt;/span&gt;</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="c_7817_duration_WesternAssetCoreBondFund_2026-01-01_2026-06-30Member"
      id="ixv-1086"
      xml:lang="en-US">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="c_7813_duration_WesternAssetCoreBondFund_ClassR_2026-01-01_2026-06-30Member"
      id="ixv-1094"
      xml:lang="en-US">&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;You can find additional information about the Fund at &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;https://www.franklintempleton.com/regulatory-fund-documents&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;. You can also &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;request this information by contacting us at &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;877-6LM-FUND/656-3863&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;.&lt;/span&gt;</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="c_7813_duration_WesternAssetCoreBondFund_ClassR_2026-01-01_2026-06-30Member"
      id="ixv-1096"
      xml:lang="en-US">https://www.franklintempleton.com/regulatory-fund-documents</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="c_7813_duration_WesternAssetCoreBondFund_ClassR_2026-01-01_2026-06-30Member"
      id="ixv-1100"
      xml:lang="en-US">877-6LM-FUND/656-3863</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="c_7813_duration_WesternAssetCoreBondFund_ClassR_2026-01-01_2026-06-30Member"
      id="foot-7813_841848-1011"
      xml:lang="en-US">&lt;div&gt;&lt;span style="text-transform:uppercase;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"&gt;&lt;b&gt;WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? &lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;(based on a hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;&lt;div&gt;
      &lt;table cellspacing="0" style="width:98%;cellspacing:0;border-top:1.5pt solid #E6FAFF;border-left:1.5pt solid #E6FAFF;  border-right:1.5pt solid #E6FAFF;  border-bottom:1.5pt solid #E6FAFF; margin-left:7.9pt;"&gt;
         &lt;tr style="height:1px;"&gt;
            &lt;td style="height:1px;width:50%;background-color:#E6FAFF;"&gt;&lt;/td&gt;
            &lt;td style="height:1px;width:22.33812949640288%;background-color:#E6FAFF;"&gt;&lt;/td&gt;
            &lt;td style="height:1px;width:27.661870503597125%;background-color:#E6FAFF;"&gt;&lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;border-bottom:1.5pt solid #1447FF;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;Class Name&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;border-bottom:1.5pt solid #1447FF;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;Costs of a $10,000 &lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;investment&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;border-bottom:1.5pt solid #1447FF;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;Costs paid as a percentage of a &lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;$10,000 investment&lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;sup&gt;*&lt;/sup&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:7.5pt;;"&gt;&lt;sup&gt;,&lt;/sup&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;sup&gt;&#x2020;&lt;/sup&gt;&lt;/span&gt;
               &lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;Class R&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;$57&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;white-space:nowrap;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;1.14%&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
      &lt;/table&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
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      decimals="INF"
      id="ixv-40992"
      unitRef="USD">57</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="c_7813_duration_WesternAssetCoreBondFund_ClassR_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="foot-7813_841848-1021"
      unitRef="RATIO">0.0114</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="c_7813_duration_WesternAssetCoreBondFund_ClassR_2026-01-01_2026-06-30Member"
      id="ixv-1174"
      xml:lang="en-US">&lt;div&gt;&lt;span style="text-transform:uppercase;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"&gt;&lt;b&gt;KEY FUND STATISTICS &lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;(as of &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;June 30, 2026)&lt;/span&gt;&lt;/div&gt;&lt;div&gt;
      &lt;table cellspacing="0" style="width:98%;cellspacing:0;border-top:1.5pt solid #6B6B6B;margin-left:7.75pt;border-bottom:1.5pt solid #6B6B6B;margin-top:10px;"&gt;
         &lt;tr style="height:1px;"&gt;
            &lt;td style="height:1px;width:74.41007194244604%;"&gt;&lt;/td&gt;
            &lt;td style="height:1px;width:25.58992805755396%;"&gt;&lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Total Net Assets&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;$1,664,972,254&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Total Number of Portfolio Holdings (excludes derivatives, except purchased options, if any)&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;809&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Portfolio Turnover Rate&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="white-space:nowrap;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;55%&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
      &lt;/table&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="c_7813_instant_WesternAssetCoreBondFund_ClassR_2026-06-30Member"
      decimals="INF"
      id="ixv-40994"
      unitRef="USD">1664972254</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="c_7813_instant_WesternAssetCoreBondFund_ClassR_2026-06-30Member"
      decimals="INF"
      id="ixv-40995"
      unitRef="UNIT">809</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="c_7813_duration_WesternAssetCoreBondFund_ClassR_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="ixv-40996"
      unitRef="RATIO">0.55</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="c_7813_duration_WesternAssetCoreBondFund_ClassR_2026-01-01_2026-06-30Member"
      id="foot-7813_841855-1011"
      xml:lang="en-US">&lt;div&gt;&lt;span style="text-transform:uppercase;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"&gt;&lt;b&gt;WHAT DID THE FUND INVEST IN? &lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;(as of &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;June 30, 2026)&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;b&gt;Portfolio Composition&lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;sup&gt;*&lt;/sup&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;b&gt; &lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;b&gt;(% of Total Investments)&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;img alt="image" src="ts7813img004.jpg" style="width:96.41294838145232%"/&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:UpdProspectusWebAddress
      contextRef="c_7813_duration_WesternAssetCoreBondFund_ClassR_2026-01-01_2026-06-30Member"
      id="ixv-1266"
      xml:lang="en-US">https://www.franklintempleton.com/regulatory-fund-documents</oef:UpdProspectusWebAddress>
    <oef:PctOfTotalInv
      contextRef="c_7813_instant_WesternAssetCoreBondFund_ClassR_2026-06-30_5230Member"
      decimals="INF"
      id="ixv-40997"
      unitRef="RATIO">0.343</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7813_instant_WesternAssetCoreBondFund_ClassR_2026-06-30_3985Member"
      decimals="INF"
      id="ixv-40998"
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    <oef:PctOfTotalInv
      contextRef="c_7813_instant_WesternAssetCoreBondFund_ClassR_2026-06-30_5228Member"
      decimals="INF"
      id="ixv-40999"
      unitRef="RATIO">0.177</oef:PctOfTotalInv>
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      contextRef="c_7813_instant_WesternAssetCoreBondFund_ClassR_2026-06-30_3402Member"
      decimals="INF"
      id="ixv-41000"
      unitRef="RATIO">0.135</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7813_instant_WesternAssetCoreBondFund_ClassR_2026-06-30_5229Member"
      decimals="INF"
      id="ixv-41001"
      unitRef="RATIO">0.094</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7813_instant_WesternAssetCoreBondFund_ClassR_2026-06-30_3984Member"
      decimals="INF"
      id="ixv-41002"
      unitRef="RATIO">0.012</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7813_instant_WesternAssetCoreBondFund_ClassR_2026-06-30_3418Member"
      decimals="INF"
      id="ixv-41003"
      unitRef="RATIO">0.007</oef:PctOfTotalInv>
    <oef:FundName
      contextRef="c_7810_duration_WesternAssetCoreBondFund_ClassI_2026-01-01_2026-06-30Member"
      id="ixv-1305"
      xml:lang="en-US">Western Asset Core Bond Fund</oef:FundName>
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      contextRef="c_7810_duration_WesternAssetCoreBondFund_ClassI_2026-01-01_2026-06-30Member"
      id="ixv-1311"
      xml:lang="en-US">Class I</oef:ClassName>
    <dei:TradingSymbol
      contextRef="c_7810_duration_WesternAssetCoreBondFund_ClassI_2026-01-01_2026-06-30Member"
      id="ixv-1314"
      xml:lang="en-US">WATFX</dei:TradingSymbol>
    <dei:DocumentPeriodEndDate
      contextRef="c_7817_duration_WesternAssetCoreBondFund_2026-01-01_2026-06-30Member"
      id="ixv-1320"
      xml:lang="en-US">2026-06-30</dei:DocumentPeriodEndDate>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="c_7810_duration_WesternAssetCoreBondFund_ClassI_2026-01-01_2026-06-30Member"
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      xml:lang="en-US">&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;This &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;semi-annual shareholder report&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt; contains important information about &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;Western Asset Core Bond Fund for the period&#160;&#x2009;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;January 1, 2026, &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;to &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;June 30, 2026.&lt;/span&gt;</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="c_7817_duration_WesternAssetCoreBondFund_2026-01-01_2026-06-30Member"
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      xml:lang="en-US">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
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      contextRef="c_7810_duration_WesternAssetCoreBondFund_ClassI_2026-01-01_2026-06-30Member"
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      xml:lang="en-US">&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;You can find additional information about the Fund at &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;https://www.franklintempleton.com/regulatory-fund-documents&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;. You can also &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;request this information by contacting us at &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;877-6LM-FUND/656-3863&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;.&lt;/span&gt;</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="c_7810_duration_WesternAssetCoreBondFund_ClassI_2026-01-01_2026-06-30Member"
      id="ixv-1339"
      xml:lang="en-US">https://www.franklintempleton.com/regulatory-fund-documents</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="c_7810_duration_WesternAssetCoreBondFund_ClassI_2026-01-01_2026-06-30Member"
      id="ixv-1343"
      xml:lang="en-US">877-6LM-FUND/656-3863</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="c_7810_duration_WesternAssetCoreBondFund_ClassI_2026-01-01_2026-06-30Member"
      id="foot-7810_841599-1011"
      xml:lang="en-US">&lt;div&gt;&lt;span style="text-transform:uppercase;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"&gt;&lt;b&gt;WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? &lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;(based on a hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;&lt;div&gt;
      &lt;table cellspacing="0" style="width:98%;cellspacing:0;border-top:1.5pt solid #E6FAFF;border-left:1.5pt solid #E6FAFF;  border-right:1.5pt solid #E6FAFF;  border-bottom:1.5pt solid #E6FAFF; margin-left:7.9pt;"&gt;
         &lt;tr style="height:1px;"&gt;
            &lt;td style="height:1px;width:50%;background-color:#E6FAFF;"&gt;&lt;/td&gt;
            &lt;td style="height:1px;width:22.33812949640288%;background-color:#E6FAFF;"&gt;&lt;/td&gt;
            &lt;td style="height:1px;width:27.661870503597125%;background-color:#E6FAFF;"&gt;&lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;border-bottom:1.5pt solid #1447FF;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;Class Name&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;border-bottom:1.5pt solid #1447FF;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;Costs of a $10,000 &lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;investment&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;border-bottom:1.5pt solid #1447FF;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;Costs paid as a percentage of a &lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;$10,000 investment&lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;sup&gt;*&lt;/sup&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:7.5pt;;"&gt;&lt;sup&gt;,&lt;/sup&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;sup&gt;&#x2020;&lt;/sup&gt;&lt;/span&gt;
               &lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;Class I&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;$22&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;white-space:nowrap;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;0.45%&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
      &lt;/table&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
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      id="ixv-41004"
      unitRef="USD">22</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
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      decimals="INF"
      id="foot-7810_841599-1021"
      unitRef="RATIO">0.0045</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="c_7810_duration_WesternAssetCoreBondFund_ClassI_2026-01-01_2026-06-30Member"
      id="ixv-1417"
      xml:lang="en-US">&lt;div&gt;&lt;span style="text-transform:uppercase;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"&gt;&lt;b&gt;KEY FUND STATISTICS &lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;(as of &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;June 30, 2026)&lt;/span&gt;&lt;/div&gt;&lt;div&gt;
      &lt;table cellspacing="0" style="width:98%;cellspacing:0;border-top:1.5pt solid #6B6B6B;margin-left:7.75pt;border-bottom:1.5pt solid #6B6B6B;margin-top:10px;"&gt;
         &lt;tr style="height:1px;"&gt;
            &lt;td style="height:1px;width:74.41007194244604%;"&gt;&lt;/td&gt;
            &lt;td style="height:1px;width:25.58992805755396%;"&gt;&lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Total Net Assets&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;$1,664,972,254&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Total Number of Portfolio Holdings (excludes derivatives, except purchased options, if any)&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;809&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Portfolio Turnover Rate&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="white-space:nowrap;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;55%&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
      &lt;/table&gt;&lt;/div&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="c_7810_instant_WesternAssetCoreBondFund_ClassI_2026-06-30Member"
      decimals="INF"
      id="ixv-41006"
      unitRef="USD">1664972254</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="c_7810_instant_WesternAssetCoreBondFund_ClassI_2026-06-30Member"
      decimals="INF"
      id="ixv-41007"
      unitRef="UNIT">809</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="c_7810_duration_WesternAssetCoreBondFund_ClassI_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="ixv-41008"
      unitRef="RATIO">0.55</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="c_7810_duration_WesternAssetCoreBondFund_ClassI_2026-01-01_2026-06-30Member"
      id="foot-7810_841606-1011"
      xml:lang="en-US">&lt;div&gt;&lt;span style="text-transform:uppercase;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"&gt;&lt;b&gt;WHAT DID THE FUND INVEST IN? &lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;(as of &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;June 30, 2026)&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;b&gt;Portfolio Composition&lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;sup&gt;*&lt;/sup&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;b&gt; &lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;color:#161616;;"&gt;&lt;b&gt;(% of Total Investments)&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;img alt="image" src="ts7810img004.jpg" style="width:96.41294838145232%"/&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:UpdProspectusWebAddress
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      id="ixv-1509"
      xml:lang="en-US">https://www.franklintempleton.com/regulatory-fund-documents</oef:UpdProspectusWebAddress>
    <oef:PctOfTotalInv
      contextRef="c_7810_instant_WesternAssetCoreBondFund_ClassI_2026-06-30_2604Member"
      decimals="INF"
      id="ixv-41009"
      unitRef="RATIO">0.343</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7810_instant_WesternAssetCoreBondFund_ClassI_2026-06-30_3985Member"
      decimals="INF"
      id="ixv-41010"
      unitRef="RATIO">0.232</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7810_instant_WesternAssetCoreBondFund_ClassI_2026-06-30_5228Member"
      decimals="INF"
      id="ixv-41011"
      unitRef="RATIO">0.177</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7810_instant_WesternAssetCoreBondFund_ClassI_2026-06-30_3402Member"
      decimals="INF"
      id="ixv-41012"
      unitRef="RATIO">0.135</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7810_instant_WesternAssetCoreBondFund_ClassI_2026-06-30_3979Member"
      decimals="INF"
      id="ixv-41013"
      unitRef="RATIO">0.094</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7810_instant_WesternAssetCoreBondFund_ClassI_2026-06-30_3984Member"
      decimals="INF"
      id="ixv-41014"
      unitRef="RATIO">0.012</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7810_instant_WesternAssetCoreBondFund_ClassI_2026-06-30_3418Member"
      decimals="INF"
      id="ixv-41015"
      unitRef="RATIO">0.007</oef:PctOfTotalInv>
    <oef:FundName
      contextRef="c_7811_duration_WesternAssetCoreBondFund_ClassIS_2026-01-01_2026-06-30Member"
      id="ixv-1548"
      xml:lang="en-US">Western Asset Core Bond Fund</oef:FundName>
    <oef:ClassName
      contextRef="c_7811_duration_WesternAssetCoreBondFund_ClassIS_2026-01-01_2026-06-30Member"
      id="ixv-1554"
      xml:lang="en-US">Class IS</oef:ClassName>
    <dei:TradingSymbol
      contextRef="c_7811_duration_WesternAssetCoreBondFund_ClassIS_2026-01-01_2026-06-30Member"
      id="ixv-1557"
      xml:lang="en-US">WACSX</dei:TradingSymbol>
    <dei:DocumentPeriodEndDate
      contextRef="c_7817_duration_WesternAssetCoreBondFund_2026-01-01_2026-06-30Member"
      id="ixv-1563"
      xml:lang="en-US">2026-06-30</dei:DocumentPeriodEndDate>
    <oef:AnnlOrSemiAnnlStatementTextBlock
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      xml:lang="en-US">&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;This &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;semi-annual shareholder report&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt; contains important information about &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;Western Asset Core Bond Fund for the period&#160;&#x2009;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;January 1, 2026, &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;to &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;June 30, 2026.&lt;/span&gt;</oef:AnnlOrSemiAnnlStatementTextBlock>
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      xml:lang="en-US">&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;You can find additional information about the Fund at &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;https://www.franklintempleton.com/regulatory-fund-documents&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;. You can also &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;request this information by contacting us at &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;877-6LM-FUND/656-3863&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;.&lt;/span&gt;</oef:AddlInfoTextBlock>
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      xml:lang="en-US">&lt;div&gt;&lt;span style="text-transform:uppercase;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"&gt;&lt;b&gt;WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? &lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;(based on a hypothetical $10,000 investment)&lt;/span&gt;&lt;/div&gt;&lt;div&gt;
      &lt;table cellspacing="0" style="width:98%;cellspacing:0;border-top:1.5pt solid #E6FAFF;border-left:1.5pt solid #E6FAFF;  border-right:1.5pt solid #E6FAFF;  border-bottom:1.5pt solid #E6FAFF; margin-left:7.9pt;"&gt;
         &lt;tr style="height:1px;"&gt;
            &lt;td style="height:1px;width:50%;background-color:#E6FAFF;"&gt;&lt;/td&gt;
            &lt;td style="height:1px;width:22.33812949640288%;background-color:#E6FAFF;"&gt;&lt;/td&gt;
            &lt;td style="height:1px;width:27.661870503597125%;background-color:#E6FAFF;"&gt;&lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;border-bottom:1.5pt solid #1447FF;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;Class Name&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
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            &lt;td colspan="1" style="background-color:#E6FAFF;;border-bottom:1.5pt solid #1447FF;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;Costs of a $10,000 &lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;investment&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;border-bottom:1.5pt solid #1447FF;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;Costs paid as a percentage of a &lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;b&gt;$10,000 investment&lt;/b&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;sup&gt;*&lt;/sup&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:7.5pt;;"&gt;&lt;sup&gt;,&lt;/sup&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;&lt;sup&gt;&#x2020;&lt;/sup&gt;&lt;/span&gt;
               &lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;"&gt;Class IS&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;$21&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="background-color:#E6FAFF;;white-space:nowrap;vertical-align:bottom"&gt;
               &lt;div style="background-color:#E6FAFF;padding-left:2pt;padding-top:1.5pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;0.42%&lt;/span&gt;&lt;/div&gt;
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      xml:lang="en-US">&lt;div&gt;&lt;span style="text-transform:uppercase;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"&gt;&lt;b&gt;KEY FUND STATISTICS &lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;(as of &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;"&gt;June 30, 2026)&lt;/span&gt;&lt;/div&gt;&lt;div&gt;
      &lt;table cellspacing="0" style="width:98%;cellspacing:0;border-top:1.5pt solid #6B6B6B;margin-left:7.75pt;border-bottom:1.5pt solid #6B6B6B;margin-top:10px;"&gt;
         &lt;tr style="height:1px;"&gt;
            &lt;td style="height:1px;width:74.41007194244604%;"&gt;&lt;/td&gt;
            &lt;td style="height:1px;width:25.58992805755396%;"&gt;&lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Total Net Assets&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
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            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;$1,664,972,254&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Total Number of Portfolio Holdings (excludes derivatives, except purchased options, if any)&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;809&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
         &lt;tr&gt;
            &lt;td colspan="1" style="vertical-align:top"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"&gt;&lt;b&gt;Portfolio Turnover Rate&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
            &lt;td colspan="1" style="white-space:nowrap;vertical-align:bottom"&gt;
               &lt;div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"&gt;&lt;span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;"&gt;55%&lt;/span&gt;&lt;/div&gt;
            &lt;/td&gt;
         &lt;/tr&gt;
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    <us-gaap:AssetsNet
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    <oef:PctOfTotalInv
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    <oef:PctOfTotalInv
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    <oef:PctOfTotalInv
      contextRef="c_7811_instant_WesternAssetCoreBondFund_ClassIS_2026-06-30_3402Member"
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    <oef:PctOfTotalInv
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    <oef:PctOfTotalInv
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        <link:footnote id="WSF_7817_842217_1991" xlink:label="WSF_7817_842217_1991" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en"><xhtml:table style="padding-top:5pt;width:100%;cellspacing:0;margin-left:8pt;"><xhtml:tr><xhtml:td style="vertical-align:top;font-family:Arial, Helvetica, sans-serif;font-size:6pt;text-align:left;align:left;width:2%;"><xhtml:span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:8.02pt;color:#6B6B6B;;">*</xhtml:span></xhtml:td><xhtml:td style="padding-bottom:0pt;padding-top:-10.02pt;padding-left:2pt;padding-right:0pt;"><xhtml:span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:9.02pt;color:#6B6B6B;;">Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.</xhtml:span></xhtml:td></xhtml:tr></xhtml:table></link:footnote>
        <link:footnoteArc
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        <link:footnote id="WSF_7817_842217_11978" xlink:label="WSF_7817_842217_11978" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en"><xhtml:table style="padding-top:5pt;width:100%;cellspacing:0;margin-left:8pt;"><xhtml:tr><xhtml:td style="vertical-align:top;font-family:Arial, Helvetica, sans-serif;font-size:6pt;text-align:left;align:left;width:2%;"><xhtml:span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:8.02pt;color:#6B6B6B;;">&#x2020;</xhtml:span></xhtml:td><xhtml:td style="padding-bottom:0pt;padding-top:-10.02pt;padding-left:2pt;padding-right:0pt;"><xhtml:span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:9.02pt;color:#6B6B6B;;">Annualized.</xhtml:span></xhtml:td></xhtml:tr></xhtml:table></link:footnote>
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        <link:footnote id="WSF_7817_842230_490" xlink:label="WSF_7817_842230_490" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en"><xhtml:table style="padding-top:5pt;width:100%;cellspacing:0;margin-left:8pt;"><xhtml:tr><xhtml:td style="vertical-align:top;font-family:Arial, Helvetica, sans-serif;font-size:6pt;text-align:left;align:left;width:2%;"><xhtml:span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:8.02pt;color:#6B6B6B;;">*</xhtml:span></xhtml:td><xhtml:td style="padding-bottom:0pt;padding-top:-10.02pt;padding-left:2pt;padding-right:0pt;"><xhtml:span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:9.02pt;color:#6B6B6B;;">Does not include derivatives, except purchased options, if any.&#160;&#x2009;</xhtml:span></xhtml:td></xhtml:tr></xhtml:table></link:footnote>
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        <link:footnote id="WSF_7814_841935_490" xlink:label="WSF_7814_841935_490" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en"><xhtml:table style="padding-top:5pt;width:100%;cellspacing:0;margin-left:8pt;"><xhtml:tr><xhtml:td style="vertical-align:top;font-family:Arial, Helvetica, sans-serif;font-size:6pt;text-align:left;align:left;width:2%;"><xhtml:span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:8.02pt;color:#6B6B6B;;">*</xhtml:span></xhtml:td><xhtml:td style="padding-bottom:0pt;padding-top:-10.02pt;padding-left:2pt;padding-right:0pt;"><xhtml:span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:9.02pt;color:#6B6B6B;;">Does not include derivatives, except purchased options, if any.&#160;&#x2009;</xhtml:span></xhtml:td></xhtml:tr></xhtml:table></link:footnote>
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        <link:footnote id="WSF_7820_842431_1991" xlink:label="WSF_7820_842431_1991" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en"><xhtml:table style="padding-top:5pt;width:100%;cellspacing:0;margin-left:8pt;"><xhtml:tr><xhtml:td style="vertical-align:top;font-family:Arial, Helvetica, sans-serif;font-size:6pt;text-align:left;align:left;width:2%;"><xhtml:span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:8.02pt;color:#6B6B6B;;">*</xhtml:span></xhtml:td><xhtml:td style="padding-bottom:0pt;padding-top:-10.02pt;padding-left:2pt;padding-right:0pt;"><xhtml:span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:9.02pt;color:#6B6B6B;;">Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.</xhtml:span></xhtml:td></xhtml:tr></xhtml:table></link:footnote>
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        <link:footnote id="WSF_7820_842431_11978" xlink:label="WSF_7820_842431_11978" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en"><xhtml:table style="padding-top:5pt;width:100%;cellspacing:0;margin-left:8pt;"><xhtml:tr><xhtml:td style="vertical-align:top;font-family:Arial, Helvetica, sans-serif;font-size:6pt;text-align:left;align:left;width:2%;"><xhtml:span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:8.02pt;color:#6B6B6B;;">&#x2020;</xhtml:span></xhtml:td><xhtml:td style="padding-bottom:0pt;padding-top:-10.02pt;padding-left:2pt;padding-right:0pt;"><xhtml:span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:9.02pt;color:#6B6B6B;;">Annualized.</xhtml:span></xhtml:td></xhtml:tr></xhtml:table></link:footnote>
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        <link:footnote id="WSF_7812_841765_1991" xlink:label="WSF_7812_841765_1991" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en"><xhtml:table style="padding-top:5pt;width:100%;cellspacing:0;margin-left:8pt;"><xhtml:tr><xhtml:td style="vertical-align:top;font-family:Arial, Helvetica, sans-serif;font-size:6pt;text-align:left;align:left;width:2%;"><xhtml:span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:8.02pt;color:#6B6B6B;;">*</xhtml:span></xhtml:td><xhtml:td style="padding-bottom:0pt;padding-top:-10.02pt;padding-left:2pt;padding-right:0pt;"><xhtml:span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:9.02pt;color:#6B6B6B;;">Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.</xhtml:span></xhtml:td></xhtml:tr></xhtml:table></link:footnote>
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