<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2026"
  xmlns:ffd="http://xbrl.sec.gov/ffd/2026"
  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"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <link:schemaRef
      xlink:href="https://xbrl.sec.gov/ffd/2026/ffd-2026.xsd"
      xlink:type="simple"/>
    <context id="rc">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000033185</identifier>
        </entity>
        <period>
            <startDate>2026-04-20</startDate>
            <endDate>2026-04-20</endDate>
        </period>
    </context>
    <context id="offrl_1">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000033185</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>1</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-04-20</startDate>
            <endDate>2026-04-20</endDate>
        </period>
    </context>
    <context id="offrl_2">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000033185</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>2</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-04-20</startDate>
            <endDate>2026-04-20</endDate>
        </period>
    </context>
    <context id="offrl_3">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000033185</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>3</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-04-20</startDate>
            <endDate>2026-04-20</endDate>
        </period>
    </context>
    <context id="offrl_4">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000033185</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>4</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-04-20</startDate>
            <endDate>2026-04-20</endDate>
        </period>
    </context>
    <unit id="USD">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="pure">
        <measure>pure</measure>
    </unit>
    <ffd:FormTp contextRef="rc" id="ixv-397">S-3</ffd:FormTp>
    <ffd:SubmissnTp contextRef="rc" id="ixv-398">S-3ASR</ffd:SubmissnTp>
    <ffd:FeeExhibitTp contextRef="rc" id="ixv-399">EX-FILING FEES</ffd:FeeExhibitTp>
    <dei:EntityCentralIndexKey contextRef="rc" id="ixv-400">0000033185</dei:EntityCentralIndexKey>
    <dei:EntityRegistrantName contextRef="rc" id="ixv-401">EQUIFAX INC</dei:EntityRegistrantName>
    <ffd:OfferingTableNa contextRef="rc" id="hiddenrcOfferingTableNa" xsi:nil="true"/>
    <ffd:OffsetTableNa contextRef="rc" id="hiddenrcOffsetTableNa">N/A</ffd:OffsetTableNa>
    <ffd:CombinedProspectusTableNa contextRef="rc" id="hiddenrcCombinedProspectusTableNa">N/A</ffd:CombinedProspectusTableNa>
    <ffd:FormTp contextRef="rc" id="ixv-456">S-3</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="rc" id="ixv-457">EQUIFAX INC</dei:EntityRegistrantName>
    <ffd:PrevslyPdFlg contextRef="offrl_1" id="ixv-458">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="offrl_1" id="ixv-459">Debt</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_1" id="ixv-460">Debt Securities</ffd:OfferingSctyTitl>
    <ffd:Rule457rFlg contextRef="offrl_1" id="ixv-461">true</ffd:Rule457rFlg>
    <ffd:FeeRate
      contextRef="offrl_1"
      decimals="7"
      id="ixv-462"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:PrevslyPdFlg contextRef="offrl_2" id="ixv-463">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="offrl_2" id="ixv-464">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_2" id="ixv-465">Common Stock</ffd:OfferingSctyTitl>
    <ffd:Rule457rFlg contextRef="offrl_2" id="ixv-466">true</ffd:Rule457rFlg>
    <ffd:FeeRate
      contextRef="offrl_2"
      decimals="7"
      id="ixv-467"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:PrevslyPdFlg contextRef="offrl_3" id="ixv-468">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="offrl_3" id="ixv-469">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_3" id="ixv-470">Preferred Stock</ffd:OfferingSctyTitl>
    <ffd:Rule457rFlg contextRef="offrl_3" id="ixv-471">true</ffd:Rule457rFlg>
    <ffd:FeeRate
      contextRef="offrl_3"
      decimals="7"
      id="ixv-472"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:PrevslyPdFlg contextRef="offrl_4" id="ixv-473">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="offrl_4" id="ixv-474">Other</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_4" id="ixv-475">Warrants</ffd:OfferingSctyTitl>
    <ffd:Rule457rFlg contextRef="offrl_4" id="ixv-476">true</ffd:Rule457rFlg>
    <ffd:FeeRate
      contextRef="offrl_4"
      decimals="7"
      id="ixv-477"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:TtlOfferingAmt contextRef="rc" decimals="2" id="ixv-478" unitRef="USD">0.00</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt contextRef="rc" decimals="2" id="ixv-479" unitRef="USD">0.00</ffd:TtlFeeAmt>
    <ffd:TtlPrevslyPdAmt contextRef="rc" decimals="2" id="ixv-480" unitRef="USD">0.00</ffd:TtlPrevslyPdAmt>
    <ffd:TtlOffsetAmt contextRef="rc" decimals="2" id="ixv-481" unitRef="USD">0.00</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt contextRef="rc" decimals="2" id="ixv-482" unitRef="USD">0.00</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="offrl_1" id="ixv-483">(1) In accordance with Rules 456(b) and 457(r), the Registrant is deferring payment of all registration fees and all registration fees will be paid subsequently on a pay-as-you go basis. (2) There is being registered hereunder an indeterminate principal amount of debt securities and an indeterminate number of shares of common stock, preferred stock and warrants as may from time to time be issued at indeterminate prices. The securities registered hereunder include securities as may from time to time be issued upon conversion, exchange, redemption, exercise or settlement of any securities registered hereunder, including under any applicable anti-dilution provisions. Any securities registered hereunder may be sold separately or together as units with other securities registered hereunder.</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_2" id="ixv-484">(1) In accordance with Rules 456(b) and 457(r), the Registrant is deferring payment of all registration fees and all registration fees will be paid subsequently on a pay-as-you go basis. (2) There is being registered hereunder an indeterminate principal amount of debt securities and an indeterminate number of shares of common stock, preferred stock and warrants as may from time to time be issued at indeterminate prices. The securities registered hereunder include securities as may from time to time be issued upon conversion, exchange, redemption, exercise or settlement of any securities registered hereunder, including under any applicable anti-dilution provisions. Any securities registered hereunder may be sold separately or together as units with other securities registered hereunder.</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_3" id="ixv-485">(1) In accordance with Rules 456(b) and 457(r), the Registrant is deferring payment of all registration fees and all registration fees will be paid subsequently on a pay-as-you go basis. (2) There is being registered hereunder an indeterminate principal amount of debt securities and an indeterminate number of shares of common stock, preferred stock and warrants as may from time to time be issued at indeterminate prices. The securities registered hereunder include securities as may from time to time be issued upon conversion, exchange, redemption, exercise or settlement of any securities registered hereunder, including under any applicable anti-dilution provisions. Any securities registered hereunder may be sold separately or together as units with other securities registered hereunder. </ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_4" id="ixv-486">(1) In accordance with Rules 456(b) and 457(r), the Registrant is deferring payment of all registration fees and all registration fees will be paid subsequently on a pay-as-you go basis. (2) There is being registered hereunder an indeterminate principal amount of debt securities and an indeterminate number of shares of common stock, preferred stock and warrants as may from time to time be issued at indeterminate prices. The securities registered hereunder include securities as may from time to time be issued upon conversion, exchange, redemption, exercise or settlement of any securities registered hereunder, including under any applicable anti-dilution provisions. Any securities registered hereunder may be sold separately or together as units with other securities registered hereunder.</ffd:OfferingNote>
</xbrl>
