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      contextRef="c_7942_duration_PutnamVTFocusedInternationalEquityFund_2026-01-01_2026-06-30Member"
      id="ixv-14979">Putnam Variable Trust</dei:EntityRegistrantName>
    <dei:DocumentPeriodEndDate
      contextRef="c_7942_duration_PutnamVTFocusedInternationalEquityFund_2026-01-01_2026-06-30Member"
      id="ixv-14980"
      xml:lang="en-US">2026-06-30</dei:DocumentPeriodEndDate>
    <oef:FundName
      contextRef="c_7942_duration_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-01-01_2026-06-30Member"
      id="ixv-104"
      xml:lang="en-US">Putnam         VT Focused International Equity Fund</oef:FundName>
    <oef:ClassName
      contextRef="c_7942_duration_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-01-01_2026-06-30Member"
      id="ixv-110"
      xml:lang="en-US">Class         IA</oef:ClassName>
    <dei:DocumentPeriodEndDate
      contextRef="c_7942_duration_PutnamVTFocusedInternationalEquityFund_2026-01-01_2026-06-30Member"
      id="ixv-115"
      xml:lang="en-US">2026-06-30</dei:DocumentPeriodEndDate>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="c_7942_duration_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-01-01_2026-06-30Member"
      id="ixv-122"
      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;Putnam
VT Focused International Equity Fund for the period &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;January
1, 2026, 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_7942_duration_PutnamVTFocusedInternationalEquityFund_2026-01-01_2026-06-30Member"
      id="ixv-124"
      xml:lang="en-US">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="c_7942_duration_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-01-01_2026-06-30Member"
      id="ixv-131"
      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;(800)
225-1581&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_7942_duration_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-01-01_2026-06-30Member"
      id="ixv-133"
      xml:lang="en-US">https://www.franklintempleton.com/regulatory-fund-documents</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="c_7942_duration_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-01-01_2026-06-30Member"
      id="ixv-137"
      xml:lang="en-US">(800)
225-1581</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="c_7942_duration_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-01-01_2026-06-30Member"
      id="foot-7942_852593-1011"
      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
        IA&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:7.5pt;;"&gt;&lt;sup&gt;1&lt;/sup&gt;&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;$41&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;0.76%&lt;/span&gt;&lt;/div&gt;
        &lt;/td&gt; &lt;/tr&gt;
  &lt;/table&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="c_7942_duration_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="foot-7942_852593-1021"
      unitRef="USD">41</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="c_7942_duration_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="foot-7942_852593-1031"
      unitRef="RATIO">0.0076</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="c_7942_duration_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-01-01_2026-06-30Member"
      id="ixv-221"
      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;$197,625,336&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;38&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;17%&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_7942_instant_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-06-30Member"
      decimals="INF"
      id="ixv-14983"
      unitRef="USD">197625336</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="c_7942_instant_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-06-30Member"
      decimals="INF"
      id="ixv-14984"
      unitRef="UNIT">38</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="c_7942_duration_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="ixv-14985"
      unitRef="RATIO">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="c_7942_duration_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-01-01_2026-06-30Member"
      id="foot-7942_852600-1011"
      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;
(% of Total Investments)&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;img alt="image" src="ts7942img004.jpg" style="width:96.41294838145232%"/&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:UpdProspectusWebAddress
      contextRef="c_7942_duration_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-01-01_2026-06-30Member"
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    <dei:NoTradingSymbolFlag
      contextRef="c_7942_duration_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-01-01_2026-06-30Member"
      id="ixv-14986">true</dei:NoTradingSymbolFlag>
    <oef:PctOfTotalInv
      contextRef="c_7942_instant_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-06-30_1629Member"
      decimals="INF"
      id="ixv-14987"
      unitRef="RATIO">0.149</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7942_instant_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-06-30_1602Member"
      decimals="INF"
      id="ixv-14988"
      unitRef="RATIO">0.125</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7942_instant_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-06-30_1619Member"
      decimals="INF"
      id="ixv-14989"
      unitRef="RATIO">0.104</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7942_instant_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-06-30_1569Member"
      decimals="INF"
      id="ixv-14990"
      unitRef="RATIO">0.098</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7942_instant_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-06-30_1573Member"
      decimals="INF"
      id="ixv-14991"
      unitRef="RATIO">0.082</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7942_instant_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-06-30_1524Member"
      decimals="INF"
      id="ixv-14992"
      unitRef="RATIO">0.079</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7942_instant_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-06-30_1581Member"
      decimals="INF"
      id="ixv-14993"
      unitRef="RATIO">0.064</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7942_instant_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-06-30_1513Member"
      decimals="INF"
      id="ixv-14994"
      unitRef="RATIO">0.052</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7942_instant_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-06-30_1653Member"
      decimals="INF"
      id="ixv-14995"
      unitRef="RATIO">0.044</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7942_instant_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-06-30_1649Member"
      decimals="INF"
      id="ixv-14996"
      unitRef="RATIO">0.035</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7942_instant_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-06-30_1525Member"
      decimals="INF"
      id="ixv-14997"
      unitRef="RATIO">0.027</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7942_instant_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-06-30_1551Member"
      decimals="INF"
      id="ixv-14998"
      unitRef="RATIO">0.024</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7942_instant_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-06-30_1603Member"
      decimals="INF"
      id="ixv-14999"
      unitRef="RATIO">0.022</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7942_instant_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-06-30_1669Member"
      decimals="INF"
      id="ixv-15000"
      unitRef="RATIO">0.022</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
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      decimals="INF"
      id="ixv-15001"
      unitRef="RATIO">0.018</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7942_instant_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-06-30_1572Member"
      decimals="INF"
      id="ixv-15002"
      unitRef="RATIO">0.014</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7942_instant_PutnamVTFocusedInternationalEquityFund_ClassIA_2026-06-30_3485Member"
      decimals="INF"
      id="ixv-15003"
      unitRef="RATIO">0.041</oef:PctOfTotalInv>
    <oef:FundName
      contextRef="c_7943_duration_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-01-01_2026-06-30Member"
      id="ixv-350"
      xml:lang="en-US">Putnam         VT Focused International Equity Fund</oef:FundName>
    <oef:ClassName
      contextRef="c_7943_duration_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-01-01_2026-06-30Member"
      id="ixv-356"
      xml:lang="en-US">Class         IB</oef:ClassName>
    <dei:DocumentPeriodEndDate
      contextRef="c_7942_duration_PutnamVTFocusedInternationalEquityFund_2026-01-01_2026-06-30Member"
      id="ixv-361"
      xml:lang="en-US">2026-06-30</dei:DocumentPeriodEndDate>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="c_7943_duration_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-01-01_2026-06-30Member"
      id="ixv-368"
      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;Putnam
VT Focused International Equity Fund for the period &lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"&gt;January
1, 2026, 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_7942_duration_PutnamVTFocusedInternationalEquityFund_2026-01-01_2026-06-30Member"
      id="ixv-370"
      xml:lang="en-US">semi-annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="c_7943_duration_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-01-01_2026-06-30Member"
      id="ixv-377"
      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;(800)
225-1581&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_7943_duration_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-01-01_2026-06-30Member"
      id="ixv-379"
      xml:lang="en-US">https://www.franklintempleton.com/regulatory-fund-documents</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="c_7943_duration_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-01-01_2026-06-30Member"
      id="ixv-383"
      xml:lang="en-US">(800)
225-1581</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="c_7943_duration_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-01-01_2026-06-30Member"
      id="foot-7943_852677-1011"
      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
        IB&lt;/span&gt;&lt;span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:7.5pt;;"&gt;&lt;sup&gt;1&lt;/sup&gt;&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;$54&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;1.01%&lt;/span&gt;&lt;/div&gt;
        &lt;/td&gt; &lt;/tr&gt;
  &lt;/table&gt;&lt;/div&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="c_7943_duration_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="foot-7943_852677-1021"
      unitRef="USD">54</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="c_7943_duration_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="foot-7943_852677-1031"
      unitRef="RATIO">0.0101</oef:ExpenseRatioPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="c_7943_duration_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-01-01_2026-06-30Member"
      id="ixv-467"
      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;$197,625,336&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;38&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;17%&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_7943_instant_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-06-30Member"
      decimals="INF"
      id="ixv-15006"
      unitRef="USD">197625336</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="c_7943_instant_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-06-30Member"
      decimals="INF"
      id="ixv-15007"
      unitRef="UNIT">38</oef:HoldingsCount>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="c_7943_duration_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-01-01_2026-06-30Member"
      decimals="INF"
      id="ixv-15008"
      unitRef="RATIO">0.17</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:HoldingsTableTextBlock
      contextRef="c_7943_duration_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-01-01_2026-06-30Member"
      id="foot-7943_852684-1011"
      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;
(% of Total Investments)&lt;/b&gt;&lt;/span&gt;&lt;/div&gt;

&lt;div&gt;&lt;img alt="image" src="ts7943img004.jpg" style="width:96.41294838145232%"/&gt;&lt;/div&gt;</oef:HoldingsTableTextBlock>
    <oef:UpdProspectusWebAddress
      contextRef="c_7943_duration_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-01-01_2026-06-30Member"
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      xml:lang="en-US">https://www.franklintempleton.com/regulatory-fund-documents</oef:UpdProspectusWebAddress>
    <dei:NoTradingSymbolFlag
      contextRef="c_7943_duration_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-01-01_2026-06-30Member"
      id="ixv-15009">true</dei:NoTradingSymbolFlag>
    <oef:PctOfTotalInv
      contextRef="c_7943_instant_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-06-30_1629Member"
      decimals="INF"
      id="ixv-15010"
      unitRef="RATIO">0.149</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7943_instant_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-06-30_1602Member"
      decimals="INF"
      id="ixv-15011"
      unitRef="RATIO">0.125</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7943_instant_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-06-30_1619Member"
      decimals="INF"
      id="ixv-15012"
      unitRef="RATIO">0.104</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7943_instant_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-06-30_1569Member"
      decimals="INF"
      id="ixv-15013"
      unitRef="RATIO">0.098</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7943_instant_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-06-30_1573Member"
      decimals="INF"
      id="ixv-15014"
      unitRef="RATIO">0.082</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7943_instant_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-06-30_1524Member"
      decimals="INF"
      id="ixv-15015"
      unitRef="RATIO">0.079</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7943_instant_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-06-30_1581Member"
      decimals="INF"
      id="ixv-15016"
      unitRef="RATIO">0.064</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7943_instant_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-06-30_1513Member"
      decimals="INF"
      id="ixv-15017"
      unitRef="RATIO">0.052</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7943_instant_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-06-30_1653Member"
      decimals="INF"
      id="ixv-15018"
      unitRef="RATIO">0.044</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7943_instant_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-06-30_1649Member"
      decimals="INF"
      id="ixv-15019"
      unitRef="RATIO">0.035</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7943_instant_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-06-30_1525Member"
      decimals="INF"
      id="ixv-15020"
      unitRef="RATIO">0.027</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7943_instant_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-06-30_1551Member"
      decimals="INF"
      id="ixv-15021"
      unitRef="RATIO">0.024</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7943_instant_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-06-30_1603Member"
      decimals="INF"
      id="ixv-15022"
      unitRef="RATIO">0.022</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="c_7943_instant_PutnamVTFocusedInternationalEquityFund_ClassIB_2026-06-30_1669Member"
      decimals="INF"
      id="ixv-15023"
      unitRef="RATIO">0.022</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
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      decimals="INF"
      id="ixv-15024"
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