<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2024"
  xmlns:ffd="http://xbrl.sec.gov/ffd/2024q2"
  xmlns:iso4217="http://www.xbrl.org/2003/iso4217"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef
      xlink:href="https://xbrl.sec.gov/ffd/2024q2/ffd-2024q2.xsd"
      xlink:type="simple"/>
    <context id="P09_17_2024To09_17_2024">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000092487</identifier>
        </entity>
        <period>
            <startDate>2024-09-17</startDate>
            <endDate>2024-09-17</endDate>
        </period>
    </context>
    <context id="P09_17_2024To09_17_2024_1TypedMemberffdOfferingAxis">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000092487</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>1</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-09-17</startDate>
            <endDate>2024-09-17</endDate>
        </period>
    </context>
    <unit id="Unit_USD">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="Unit_pure">
        <measure>pure</measure>
    </unit>
    <unit id="Unit_shares">
        <measure>shares</measure>
    </unit>
    <dei:EntityCentralIndexKey contextRef="P09_17_2024To09_17_2024" id="ixv-223">0000092487</dei:EntityCentralIndexKey>
    <ffd:FeeExhibitTp contextRef="P09_17_2024To09_17_2024" id="ixv-224">EX-FILING FEES</ffd:FeeExhibitTp>
    <ffd:PrevslyPdFlg
      contextRef="P09_17_2024To09_17_2024_1TypedMemberffdOfferingAxis"
      id="hidden121456489">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTitl
      contextRef="P09_17_2024To09_17_2024_1TypedMemberffdOfferingAxis"
      id="hidden121460719">Series 2024-A Senior Secured Storm Recovery Bonds</ffd:OfferingSctyTitl>
    <ffd:FormTp contextRef="P09_17_2024To09_17_2024" id="ixv-251">SF-1</ffd:FormTp>
    <ffd:SubmissnTp contextRef="P09_17_2024To09_17_2024" id="ixv-252">SF-1</ffd:SubmissnTp>
    <dei:EntityRegistrantName contextRef="P09_17_2024To09_17_2024" id="ixv-253">Southwestern Electric Power Company</dei:EntityRegistrantName>
    <ffd:OfferingSctyTp
      contextRef="P09_17_2024To09_17_2024_1TypedMemberffdOfferingAxis"
      id="ixv-254">Asset-Backed Securities</ffd:OfferingSctyTp>
    <ffd:Rule457oFlg
      contextRef="P09_17_2024To09_17_2024_1TypedMemberffdOfferingAxis"
      id="ixv-255">true</ffd:Rule457oFlg>
    <ffd:AmtSctiesRegd
      contextRef="P09_17_2024To09_17_2024_1TypedMemberffdOfferingAxis"
      decimals="0"
      id="ixv-256"
      unitRef="Unit_shares">343000000</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="P09_17_2024To09_17_2024_1TypedMemberffdOfferingAxis"
      decimals="0"
      id="ixv-257"
      unitRef="Unit_pure">100</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="P09_17_2024To09_17_2024_1TypedMemberffdOfferingAxis"
      decimals="0"
      id="ixv-258"
      unitRef="Unit_USD">343000000</ffd:MaxAggtOfferingPric>
    <ffd:FeeRate
      contextRef="P09_17_2024To09_17_2024_1TypedMemberffdOfferingAxis"
      decimals="INF"
      id="ixv-259"
      unitRef="Unit_pure">0.0001476</ffd:FeeRate>
    <ffd:FeeAmt
      contextRef="P09_17_2024To09_17_2024_1TypedMemberffdOfferingAxis"
      decimals="2"
      id="ixv-260"
      unitRef="Unit_USD">50626.8</ffd:FeeAmt>
    <ffd:TtlOfferingAmt
      contextRef="P09_17_2024To09_17_2024"
      decimals="0"
      id="ixv-261"
      unitRef="Unit_USD">343000000</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt
      contextRef="P09_17_2024To09_17_2024"
      decimals="2"
      id="ixv-262"
      unitRef="Unit_USD">50626.8</ffd:TtlFeeAmt>
    <ffd:TtlPrevslyPdAmt
      contextRef="P09_17_2024To09_17_2024"
      decimals="2"
      id="ixv-263"
      unitRef="Unit_USD">0</ffd:TtlPrevslyPdAmt>
    <ffd:TtlOffsetAmt
      contextRef="P09_17_2024To09_17_2024"
      decimals="2"
      id="ixv-264"
      unitRef="Unit_USD">0</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt
      contextRef="P09_17_2024To09_17_2024"
      decimals="2"
      id="ixv-265"
      unitRef="Unit_USD">50626.8</ffd:NetFeeAmt>
    <ffd:OfferingNote
      contextRef="P09_17_2024To09_17_2024_1TypedMemberffdOfferingAxis"
      id="ixv-215">
&lt;table cellpadding="0" cellspacing="0" style="text-align:start; BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt;border:0;width:100%"&gt;
&lt;tr style="page-break-inside:avoid"&gt;
&lt;td style="width:4%;vertical-align:top;text-align:left;"&gt;(1)&lt;/td&gt;
&lt;td style="vertical-align:top;text-align:left;"&gt;&lt;div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: &amp;quot;Times New Roman&amp;quot;; text-align: justify; line-height: normal;"&gt;Estimated solely for the purposes of calculating the registration fee. &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</ffd:OfferingNote>
</xbrl>
