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        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001048607</identifier>
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        <period>
            <startDate>2024-07-24</startDate>
            <endDate>2024-07-24</endDate>
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        <period>
            <startDate>2024-07-24</startDate>
            <endDate>2024-07-24</endDate>
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        <measure>pure</measure>
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    <dei:DocumentPeriodEndDate contextRef="c0" id="ixv-1629">2024-07-24</dei:DocumentPeriodEndDate>
    <dei:EntityInvCompanyType contextRef="c0" id="ixv-1630">N-6</dei:EntityInvCompanyType>
    <dei:EntityRegistrantName contextRef="c0" id="ixv-1631">Lincoln Life Flexible Premium Variable Life Account M</dei:EntityRegistrantName>
    <vip:PortfolioCompaniesN6TextBlock contextRef="c0" id="ixv-257">&lt;p style="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"&gt;&lt;b&gt;The following line item is added to Appendix A &#x2013; Funds Available
Under the Policy on or about August 23, 2024:&lt;/b&gt;&lt;/p&gt;




&lt;p style="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;




&lt;table cellpadding="0" cellspacing="0" style="font: 11pt Arial, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse"&gt; &lt;tr style="vertical-align: top"&gt; &lt;td rowspan="2" style="border: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;&lt;b&gt;Investment Objective&lt;/b&gt;&lt;/span&gt;&lt;/td&gt; &lt;td rowspan="2" style="border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;&lt;b&gt;Fund and Adviser/Sub-&lt;br/&gt;
adviser&lt;/b&gt;&lt;/span&gt;&lt;/td&gt; &lt;td rowspan="2" style="border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;&lt;b&gt;Current Expenses&lt;/b&gt;&lt;/span&gt;&lt;/td&gt; &lt;td colspan="3" style="border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt"&gt; &lt;p style="font: 11pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-align: center"&gt;&lt;b&gt;Average Annual Total&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 11pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-align: center"&gt;&#160;&lt;/p&gt; &lt;p style="font: 11pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-align: center"&gt;&lt;b&gt;Returns (as of 12/31/2023)&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 11pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-align: center"&gt;&#160;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt; &lt;td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;1 year&lt;/span&gt;&lt;/td&gt; &lt;td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;5 year&lt;/span&gt;&lt;/td&gt; &lt;td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;10 year&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt; &lt;td style="width: 34%; border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;Long-term capital growth. &lt;/span&gt;&lt;/td&gt; &lt;td style="width: 26%; border-bottom: Black 1pt solid; border-right: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;LVIP American Century Ultra&lt;sup&gt;&#xae;&lt;/sup&gt; Fund &#x2013; Standard Class&lt;br/&gt;
&lt;i&gt;advised by Lincoln Financial Investments Corporation&lt;/i&gt;&lt;/span&gt;&lt;/td&gt; &lt;td style="width: 13%; border-bottom: Black 1pt solid; border-right: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;0.65%&lt;sup&gt;1&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt; &lt;td style="width: 9%; border-bottom: Black 1pt solid; border-right: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;N/A&lt;/span&gt;&lt;/td&gt; &lt;td style="width: 9%; border-bottom: Black 1pt solid; border-right: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;N/A&lt;/span&gt;&lt;/td&gt; &lt;td style="width: 9%; border-bottom: Black 1pt solid; border-right: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;N/A&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt; &lt;/table&gt;
&lt;p style="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"&gt;&lt;span style="font-size: 8pt"&gt;&lt;sup&gt;1&lt;/sup&gt;&lt;/span&gt;This fund is subject
to an expense reimbursement or fee waiver arrangement. As a result, this fund&#x2019;s annual expenses reflect temporary expense reductions.
See the fund&#x2019;s prospectus for additional information.&lt;/p&gt;</vip:PortfolioCompaniesN6TextBlock>
    <vip:ProspectusesAvailableTextBlock contextRef="c0" id="ixv-258">&lt;p style="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"&gt;&lt;b&gt;The following line item is added to Appendix A &#x2013; Funds Available
Under the Policy on or about August 23, 2024:&lt;/b&gt;&lt;/p&gt;</vip:ProspectusesAvailableTextBlock>
    <vip:PortfolioCompaniesTableTextBlock contextRef="c0" id="ixv-263">&lt;table cellpadding="0" cellspacing="0" style="font: 11pt Arial, Helvetica, Sans-Serif; width: 100%; border-collapse: collapse"&gt; &lt;tr style="vertical-align: top"&gt; &lt;td rowspan="2" style="border: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;&lt;b&gt;Investment Objective&lt;/b&gt;&lt;/span&gt;&lt;/td&gt; &lt;td rowspan="2" style="border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;&lt;b&gt;Fund and Adviser/Sub-&lt;br/&gt;
adviser&lt;/b&gt;&lt;/span&gt;&lt;/td&gt; &lt;td rowspan="2" style="border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;&lt;b&gt;Current Expenses&lt;/b&gt;&lt;/span&gt;&lt;/td&gt; &lt;td colspan="3" style="border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt"&gt; &lt;p style="font: 11pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-align: center"&gt;&lt;b&gt;Average Annual Total&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 11pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-align: center"&gt;&#160;&lt;/p&gt; &lt;p style="font: 11pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-align: center"&gt;&lt;b&gt;Returns (as of 12/31/2023)&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 11pt Arial, Helvetica, Sans-Serif; margin: 0pt 0; text-align: center"&gt;&#160;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt; &lt;td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;1 year&lt;/span&gt;&lt;/td&gt; &lt;td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;5 year&lt;/span&gt;&lt;/td&gt; &lt;td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;10 year&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt; &lt;td style="width: 34%; border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;Long-term capital growth. &lt;/span&gt;&lt;/td&gt; &lt;td style="width: 26%; border-bottom: Black 1pt solid; border-right: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;LVIP American Century Ultra&lt;sup&gt;&#xae;&lt;/sup&gt; Fund &#x2013; Standard Class&lt;br/&gt;
&lt;i&gt;advised by Lincoln Financial Investments Corporation&lt;/i&gt;&lt;/span&gt;&lt;/td&gt; &lt;td style="width: 13%; border-bottom: Black 1pt solid; border-right: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;0.65%&lt;sup&gt;1&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt; &lt;td style="width: 9%; border-bottom: Black 1pt solid; border-right: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;N/A&lt;/span&gt;&lt;/td&gt; &lt;td style="width: 9%; border-bottom: Black 1pt solid; border-right: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;N/A&lt;/span&gt;&lt;/td&gt; &lt;td style="width: 9%; border-bottom: Black 1pt solid; border-right: Black 1pt solid; padding-right: 5.4pt; padding-bottom: 8pt; padding-left: 5.4pt; text-align: center"&gt;&lt;span style="font-family: Arial, Helvetica, Sans-Serif; font-size: 11pt"&gt;N/A&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt; &lt;/table&gt;&lt;p style="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0pt 0"&gt;&lt;span style="font-size: 8pt"&gt;&lt;sup&gt;1&lt;/sup&gt;&lt;/span&gt;This fund is subject
to an expense reimbursement or fee waiver arrangement. As a result, this fund&#x2019;s annual expenses reflect temporary expense reductions.
See the fund&#x2019;s prospectus for additional information.&lt;/p&gt;</vip:PortfolioCompaniesTableTextBlock>
    <vip:PortfolioCompanyObjectiveTextBlock contextRef="c1" id="ixv-1632">Long-term capital growth.</vip:PortfolioCompanyObjectiveTextBlock>
    <vip:PortfolioCompanyNameTextBlock contextRef="c1" id="ixv-295">LVIP American Century Ultra&lt;sup&gt;&#xae;&lt;/sup&gt; Fund &#x2013; Standard Class</vip:PortfolioCompanyNameTextBlock>
    <vip:PortfolioCompanyAdviserTextBlock contextRef="c1" id="ixv-1633">Lincoln Financial Investments Corporation</vip:PortfolioCompanyAdviserTextBlock>
    <vip:CurrentExpensesPercent contextRef="c1" decimals="4" id="ix_0_fact" unitRef="pure">0.0065</vip:CurrentExpensesPercent>
    <vip:TemporaryFeeReductionsCurrentExpensesTextBlock contextRef="c0" id="ixv-1635">This fund is subject
to an expense reimbursement or fee waiver arrangement. As a result, this fund&#x2019;s annual expenses reflect temporary expense reductions.
See the fund&#x2019;s prospectus for additional information.</vip:TemporaryFeeReductionsCurrentExpensesTextBlock>
    <dei:AmendmentFlag contextRef="c0" id="ixv-1639">false</dei:AmendmentFlag>
    <dei:DocumentType contextRef="c0" id="ixv-1640">N-6</dei:DocumentType>
    <dei:EntityCentralIndexKey contextRef="c0" id="ixv-1641">0001048607</dei:EntityCentralIndexKey>
    <link:footnoteLink
      xlink:role="http://www.xbrl.org/2003/role/link"
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        <link:footnote id="ix_0_footnote" xlink:label="ix_0_footnote" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">This fund is subject
to an expense reimbursement or fee waiver arrangement. As a result, this fund&#x2019;s annual expenses reflect temporary expense reductions.
See the fund&#x2019;s prospectus for additional information.</link:footnote>
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