<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xml:lang="en-US"
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2019-01-31"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="tpx-20201109.xsd" xlink:type="simple"/>
    <context id="iae4b636362a148958ce7760794059505_D20201109-20201109">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001206264</identifier>
        </entity>
        <period>
            <startDate>2020-11-09</startDate>
            <endDate>2020-11-09</endDate>
        </period>
    </context>
    <dei:AmendmentFlag
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV80L2ZyYWc6ZWYxNmFmMWY0ZDE5NGJjMTljMDI3MTIzOWEzZmQ2MWEvdGFibGU6OWI0ZWZjNDhmYTcyNGY3ZDhmMjUxN2M2OGVlNzFiNTcvdGFibGVyYW5nZTo5YjRlZmM0OGZhNzI0ZjdkOGYyNTE3YzY4ZWU3MWI1N18yLTEtMS0xLTA_edb11c27-9c8a-4063-868c-fcc1c3a4d3c0">false</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV80L2ZyYWc6ZWYxNmFmMWY0ZDE5NGJjMTljMDI3MTIzOWEzZmQ2MWEvdGFibGU6OWI0ZWZjNDhmYTcyNGY3ZDhmMjUxN2M2OGVlNzFiNTcvdGFibGVyYW5nZTo5YjRlZmM0OGZhNzI0ZjdkOGYyNTE3YzY4ZWU3MWI1N18zLTEtMS0xLTA_f5f12d19-9abc-41c0-8981-8e344fa90fe3">0001206264</dei:EntityCentralIndexKey>
    <dei:DocumentType
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV8xL2ZyYWc6MGYwZGYzNzViZDBkNGY1YjhhMzg1ODQzYjg3MTRlZmIvdGV4dHJlZ2lvbjowZjBkZjM3NWJkMGQ0ZjViOGEzODU4NDNiODcxNGVmYl84Mw_b08744af-1fdb-48b9-b0b9-0016a94e29a5">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV8xL2ZyYWc6MGYwZGYzNzViZDBkNGY1YjhhMzg1ODQzYjg3MTRlZmIvdGV4dHJlZ2lvbjowZjBkZjM3NWJkMGQ0ZjViOGEzODU4NDNiODcxNGVmYl8yMjY_d56f22d3-0c7f-4607-97b9-dd39c1e01504">2020-11-09</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV8xL2ZyYWc6MGYwZGYzNzViZDBkNGY1YjhhMzg1ODQzYjg3MTRlZmIvdGV4dHJlZ2lvbjowZjBkZjM3NWJkMGQ0ZjViOGEzODU4NDNiODcxNGVmYl8yMzE_6ce0641f-7caf-4b8d-afd9-0f6806948cd0">TEMPUR SEALY INTERNATIONAL, INC.</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV8xL2ZyYWc6MGYwZGYzNzViZDBkNGY1YjhhMzg1ODQzYjg3MTRlZmIvdGFibGU6YWQxNDAzOTM5Zjk5NGM3MDkyNjUwNmU5YjU5MzIwYTMvdGFibGVyYW5nZTphZDE0MDM5MzlmOTk0YzcwOTI2NTA2ZTliNTkzMjBhM18wLTAtMS0xLTA_b8203d8a-4703-4b61-96a0-4ff3ac768cad">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV8xL2ZyYWc6MGYwZGYzNzViZDBkNGY1YjhhMzg1ODQzYjg3MTRlZmIvdGFibGU6YWQxNDAzOTM5Zjk5NGM3MDkyNjUwNmU5YjU5MzIwYTMvdGFibGVyYW5nZTphZDE0MDM5MzlmOTk0YzcwOTI2NTA2ZTliNTkzMjBhM18wLTEtMS0xLTA_709a4aed-709e-4f1d-bf8d-4d8dfc957b42">001-31922</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV8xL2ZyYWc6MGYwZGYzNzViZDBkNGY1YjhhMzg1ODQzYjg3MTRlZmIvdGFibGU6YWQxNDAzOTM5Zjk5NGM3MDkyNjUwNmU5YjU5MzIwYTMvdGFibGVyYW5nZTphZDE0MDM5MzlmOTk0YzcwOTI2NTA2ZTliNTkzMjBhM18wLTItMS0xLTA_ce1c098e-0e94-4ed3-9ed9-9561423bf4a9">33-1022198</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV8xL2ZyYWc6MGYwZGYzNzViZDBkNGY1YjhhMzg1ODQzYjg3MTRlZmIvdGV4dHJlZ2lvbjowZjBkZjM3NWJkMGQ0ZjViOGEzODU4NDNiODcxNGVmYl8yOTM_a1bb085d-dd11-43a7-aacb-b7447817e402">1000 Tempur Way</dei:EntityAddressAddressLine1>
    <dei:EntityAddressCityOrTown
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV8xL2ZyYWc6MGYwZGYzNzViZDBkNGY1YjhhMzg1ODQzYjg3MTRlZmIvdGV4dHJlZ2lvbjowZjBkZjM3NWJkMGQ0ZjViOGEzODU4NDNiODcxNGVmYl8yOTc_e7fda62f-5c06-4e65-add6-58486dca2c10">Lexington</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV8xL2ZyYWc6MGYwZGYzNzViZDBkNGY1YjhhMzg1ODQzYjg3MTRlZmIvdGV4dHJlZ2lvbjowZjBkZjM3NWJkMGQ0ZjViOGEzODU4NDNiODcxNGVmYl8zMDE_551dc80d-3d31-4882-927e-53292f1175d4">KY</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV8xL2ZyYWc6MGYwZGYzNzViZDBkNGY1YjhhMzg1ODQzYjg3MTRlZmIvdGV4dHJlZ2lvbjowZjBkZjM3NWJkMGQ0ZjViOGEzODU4NDNiODcxNGVmYl8zMDU_9493977f-cbe2-4c0b-8d36-c2151713b98d">40511</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV8xL2ZyYWc6MGYwZGYzNzViZDBkNGY1YjhhMzg1ODQzYjg3MTRlZmIvdGV4dHJlZ2lvbjowZjBkZjM3NWJkMGQ0ZjViOGEzODU4NDNiODcxNGVmYl8zNjM_8034fb4d-9639-4d06-bdfa-07cb7e82901b">800</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV8xL2ZyYWc6MGYwZGYzNzViZDBkNGY1YjhhMzg1ODQzYjg3MTRlZmIvdGV4dHJlZ2lvbjowZjBkZjM3NWJkMGQ0ZjViOGEzODU4NDNiODcxNGVmYl8zNjc_e496ed5a-2678-476b-b79a-10722cea8a2d">878-8889</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV8xL2ZyYWc6MGYwZGYzNzViZDBkNGY1YjhhMzg1ODQzYjg3MTRlZmIvdGFibGU6NDRkMzNkZDFlODFjNDllNWEzNDNhNjQ4YjRmMTEzMmMvdGFibGVyYW5nZTo0NGQzM2RkMWU4MWM0OWU1YTM0M2E2NDhiNGYxMTMyY18wLTEtMS0xLTA_70fad513-ff56-4d7d-9f54-25065ce0ebb5">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV8xL2ZyYWc6MGYwZGYzNzViZDBkNGY1YjhhMzg1ODQzYjg3MTRlZmIvdGFibGU6NDcwMDhlOTk1NzgxNGYxY2JmNzE0OWFhMTdmOTk1NjcvdGFibGVyYW5nZTo0NzAwOGU5OTU3ODE0ZjFjYmY3MTQ5YWExN2Y5OTU2N18wLTEtMS0xLTA_53610b41-7987-4584-ab67-1d7ac4ab7c09">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV8xL2ZyYWc6MGYwZGYzNzViZDBkNGY1YjhhMzg1ODQzYjg3MTRlZmIvdGFibGU6ZjA2ZDM2MDcyOTBjNDkzYjliNzM0NGQ4YmJmZjExMDMvdGFibGVyYW5nZTpmMDZkMzYwNzI5MGM0OTNiOWI3MzQ0ZDhiYmZmMTEwM18wLTEtMS0xLTA_f6985a2a-a6a5-4b64-b2f4-d74472ad3579">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV8xL2ZyYWc6MGYwZGYzNzViZDBkNGY1YjhhMzg1ODQzYjg3MTRlZmIvdGFibGU6YmNlOTYzOTQ1M2E4NDczNjhlYzFiZGI0Yzg2NGNkYTYvdGFibGVyYW5nZTpiY2U5NjM5NDUzYTg0NzM2OGVjMWJkYjRjODY0Y2RhNl8wLTEtMS0xLTA_8d55481a-c3d4-4ebd-be02-185a8246f86c">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV8xL2ZyYWc6MGYwZGYzNzViZDBkNGY1YjhhMzg1ODQzYjg3MTRlZmIvdGFibGU6NTA4MmFiYTg5NWJkNDA5OThmZDBhNmQ1OWM0N2Y3YjYvdGFibGVyYW5nZTo1MDgyYWJhODk1YmQ0MDk5OGZkMGE2ZDU5YzQ3ZjdiNl8xLTAtMS0xLTA_e1961408-aff5-495b-b0f4-bd3522ba6fa3">Common Stock, $0.01 par value</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV8xL2ZyYWc6MGYwZGYzNzViZDBkNGY1YjhhMzg1ODQzYjg3MTRlZmIvdGFibGU6NTA4MmFiYTg5NWJkNDA5OThmZDBhNmQ1OWM0N2Y3YjYvdGFibGVyYW5nZTo1MDgyYWJhODk1YmQ0MDk5OGZkMGE2ZDU5YzQ3ZjdiNl8xLTEtMS0xLTA_bfc3d6b0-333d-4cd3-b049-c56dcfe24271">TPX</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV8xL2ZyYWc6MGYwZGYzNzViZDBkNGY1YjhhMzg1ODQzYjg3MTRlZmIvdGFibGU6NTA4MmFiYTg5NWJkNDA5OThmZDBhNmQ1OWM0N2Y3YjYvdGFibGVyYW5nZTo1MDgyYWJhODk1YmQ0MDk5OGZkMGE2ZDU5YzQ3ZjdiNl8xLTItMS0xLTA_0e8f50bb-cb94-4d2c-a5ab-e2d0921e0721">NYSE</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany
      contextRef="iae4b636362a148958ce7760794059505_D20201109-20201109"
      id="id3VybDovL2RvY3MudjEvZG9jOjU0YmY4NTdhZjFjOTQyZTFiYzA2NTc1NDExOTAyOWUxL3NlYzo1NGJmODU3YWYxYzk0MmUxYmMwNjU3NTQxMTkwMjllMV8xL2ZyYWc6MGYwZGYzNzViZDBkNGY1YjhhMzg1ODQzYjg3MTRlZmIvdGV4dHJlZ2lvbjowZjBkZjM3NWJkMGQ0ZjViOGEzODU4NDNiODcxNGVmYl8xMDAz_81263faa-ffa6-4b5d-9e00-b80e24f3c6a5">false</dei:EntityEmergingGrowthCompany>
</xbrl>
