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  xmlns:dei="http://xbrl.sec.gov/dei/2025"
  xmlns:ffd="http://xbrl.sec.gov/ffd/2025"
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      xlink:href="https://xbrl.sec.gov/ffd/2025/ffd-2025.xsd"
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        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000845982</identifier>
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                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>1</dei:lineNo>
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        <period>
            <startDate>2026-10-09</startDate>
            <endDate>2026-10-09</endDate>
        </period>
    </context>
    <context id="c_offering_2">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000845982</identifier>
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                <xbrldi:typedMember dimension="ffd:OfferingAxis">
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        <period>
            <startDate>2026-10-09</startDate>
            <endDate>2026-10-09</endDate>
        </period>
    </context>
    <context id="c_report">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000845982</identifier>
        </entity>
        <period>
            <startDate>2026-10-09</startDate>
            <endDate>2026-10-09</endDate>
        </period>
    </context>
    <unit id="USD">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="pure">
        <measure>pure</measure>
    </unit>
    <unit id="shares">
        <measure>shares</measure>
    </unit>
    <ffd:SubmissnTp contextRef="c_report" id="fee_001">S-8</ffd:SubmissnTp>
    <ffd:FeeExhibitTp contextRef="c_report" id="fee_002">EX-FILING FEES</ffd:FeeExhibitTp>
    <dei:EntityCentralIndexKey contextRef="c_report" id="fee_003">0000845982</dei:EntityCentralIndexKey>
    <ffd:PrevslyPdFlg contextRef="c_offering_1" id="fee_004">false</ffd:PrevslyPdFlg>
    <ffd:PrevslyPdFlg contextRef="c_offering_2" id="fee_005">false</ffd:PrevslyPdFlg>
    <ffd:OfferingTableNa contextRef="c_report" id="fee_006" xsi:nil="true"/>
    <ffd:OffsetTableNa contextRef="c_report" id="fee_007">N/A</ffd:OffsetTableNa>
    <ffd:FormTp contextRef="c_report" id="fee_008">S-8</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="c_report" id="fee_009">Smith &amp; Nephew plc</dei:EntityRegistrantName>
    <ffd:OfferingSctyTp contextRef="c_offering_1" id="fee_010">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c_offering_1" id="fee_011">Ordinary Shares, par value of $0.20 per Ordinary Share ("Ordinary Shares")</ffd:OfferingSctyTitl>
    <ffd:Rule457aFlg contextRef="c_offering_1" id="fee_012">true</ffd:Rule457aFlg>
    <ffd:AmtSctiesRegd
      contextRef="c_offering_1"
      decimals="0"
      id="fee_013"
      unitRef="shares">13000000</ffd:AmtSctiesRegd>
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      contextRef="c_offering_1"
      decimals="INF"
      id="fee_014"
      unitRef="USD">13.1550</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="c_offering_1"
      decimals="INF"
      id="fee_015"
      unitRef="USD">171015000.00</ffd:MaxAggtOfferingPric>
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      contextRef="c_offering_1"
      decimals="INF"
      id="fee_016"
      unitRef="pure">0.0000870</ffd:FeeRate>
    <ffd:FeeAmt
      contextRef="c_offering_1"
      decimals="INF"
      id="fee_017"
      unitRef="USD">14878.31</ffd:FeeAmt>
    <ffd:OfferingSctyTp contextRef="c_offering_2" id="fee_018">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c_offering_2" id="fee_019">American Depositary Shares, each representing two Ordinary Shares ("ADSs")</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg contextRef="c_offering_2" id="fee_020">true</ffd:FeesOthrRuleFlg>
    <ffd:AmtSctiesRegd
      contextRef="c_offering_2"
      decimals="0"
      id="fee_021"
      unitRef="shares">6500000</ffd:AmtSctiesRegd>
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      contextRef="c_offering_2"
      decimals="INF"
      id="fee_022"
      unitRef="USD">0.00</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="c_offering_2"
      decimals="INF"
      id="fee_023"
      unitRef="USD">0.00</ffd:MaxAggtOfferingPric>
    <ffd:FeeRate
      contextRef="c_offering_2"
      decimals="INF"
      id="fee_024"
      unitRef="pure">0.0000870</ffd:FeeRate>
    <ffd:FeeAmt
      contextRef="c_offering_2"
      decimals="INF"
      id="fee_025"
      unitRef="USD">0.00</ffd:FeeAmt>
    <ffd:TtlOfferingAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_026"
      unitRef="USD">171015000.00</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_027"
      unitRef="USD">14878.31</ffd:TtlFeeAmt>
    <ffd:TtlOffsetAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_028"
      unitRef="USD">0.00</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_029"
      unitRef="USD">14878.31</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="c_offering_1" id="fee_030">Pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the &#x201c;Securities Act&#x201d;), this Registration Statement shall also cover any additional Ordinary Shares of Registrant that become issuable under the Smith &amp;amp; Nephew U.S. Employee Stock Purchase Plan as a result of any stock dividend, stock split, recapitalization, or other similar transaction.</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="c_offering_2" id="fee_031">ADSs, evidenced by American Depositary Receipts ("ADRs") issuable upon deposit of Ordinary Shares of the Registrant, have been registered pursuant to a Registration Statement on Form F-6 filed with the Securities and Exchange Commission on September 23, 2019. Each ADS represents two Ordinary Shares.&lt;br/&gt;&lt;br/&gt;Estimated solely for the purpose of determining the registration fee pursuant to Rules 457(c) and (h) under the Securities Act, based upon the average of the high and low price for an ADR, as quoted on the New York Stock Exchange on October 2, 2026, which average was $26.31, and therefore, represents $13.155 per Ordinary Share.&lt;br/&gt;</ffd:OfferingNote>
</xbrl>
