<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2025"
  xmlns:dlr="http://www.digitalrealty.com/20260529"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:us-gaap="http://fasb.org/us-gaap/2025"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="dlr-20260529.xsd" xlink:type="simple"/>
    <context id="Duration_5_29_2026_To_5_29_2026_us-gaap_StatementClassOfStockAxis_us-gaap_CommonStockMember_h44FBH_2nk-IsP8ArGfr3g">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001297996</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-05-29</startDate>
            <endDate>2026-05-29</endDate>
        </period>
    </context>
    <context id="Duration_5_29_2026_To_5_29_2026_us-gaap_StatementClassOfStockAxis_dlr_SeriesLPreferredStockMember_pXqEIITGQ0W9FFJrS62nBA">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001297996</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">dlr:SeriesLPreferredStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-05-29</startDate>
            <endDate>2026-05-29</endDate>
        </period>
    </context>
    <context id="Duration_5_29_2026_To_5_29_2026_us-gaap_StatementClassOfStockAxis_dlr_SeriesKPreferredStockMember_A3cjrLAwm06iGw10j8jnow">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001297996</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">dlr:SeriesKPreferredStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-05-29</startDate>
            <endDate>2026-05-29</endDate>
        </period>
    </context>
    <context id="Duration_5_29_2026_To_5_29_2026_us-gaap_StatementClassOfStockAxis_dlr_SeriesJPreferredStockMember_v9OKz2E1XEqNw4fEiX7PXg">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001297996</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">dlr:SeriesJPreferredStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-05-29</startDate>
            <endDate>2026-05-29</endDate>
        </period>
    </context>
    <context id="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001297996</identifier>
        </entity>
        <period>
            <startDate>2026-05-29</startDate>
            <endDate>2026-05-29</endDate>
        </period>
    </context>
    <dei:EntityCentralIndexKey
      contextRef="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA"
      id="Tc_7bU4Ns1pF0mAKRsX-mPiWA_1_1">0001297996</dei:EntityCentralIndexKey>
    <dei:AmendmentFlag
      contextRef="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA"
      id="Tc_9Z98JYlvjUOQZPTVdVEc0g_2_1">false</dei:AmendmentFlag>
    <dei:DocumentType
      contextRef="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA"
      id="Narr_gD1X4cxQXEutf-mbN_soJg">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA"
      id="Narr_1h7J0L2G_kungsfbLfc_Rg">2026-05-29</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA"
      id="Narr_UgabHmKNAUiB-S6Ku1CGxQ">DIGITAL REALTY TRUST,&#160;INC.</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA"
      id="Tc_4rw-uamw80S5V7MjhrTTXw_2_0">MD</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA"
      id="Tc_GDSpCT2fBkqmgOjhfcC9kA_2_1">001-32336</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA"
      id="Tc_7PanRYA-gke0qvZ08rp7Uw_2_2">26-0081711</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA"
      id="Narr_h9PpcFBqJkaffjyhi9CuMQ">601 West 2nd Street</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2
      contextRef="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA"
      id="Narr_6A-EMYuUEUuSVc5eRpSyZQ">Floor 32</dei:EntityAddressAddressLine2>
    <dei:EntityAddressCityOrTown
      contextRef="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA"
      id="Narr_dHJRkwlasUa9k8cY7LtvgA">Austin</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA"
      id="Narr_DZdcwPrG-0SNrhQ7MvG4tw">TX</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA"
      id="Tc_Cc40cV6H_kGfljl-iSA-Cg_2_1">78701</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA"
      id="Narr_Wv6UR7pt60G_EBeNg-Ycnw">737</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA"
      id="Narr_SuYOvl0aX0W1AJCJDl-LFg">281-0101</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA"
      id="Narr_S7L5mYBYfEa-wJ3Ws52elw">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA"
      id="Narr_iFSFmtoIjUyyWLhKmwfvvg">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA"
      id="Narr_XycgfrDVU0a6QL1oKN52hw">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA"
      id="Narr_5w-SBfjuxEuvcRcbLBr5OQ">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="Duration_5_29_2026_To_5_29_2026_us-gaap_StatementClassOfStockAxis_us-gaap_CommonStockMember_h44FBH_2nk-IsP8ArGfr3g"
      id="Tc__YzOVBCQikimguMT3vzllw_3_0">Common Stock</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="Duration_5_29_2026_To_5_29_2026_us-gaap_StatementClassOfStockAxis_us-gaap_CommonStockMember_h44FBH_2nk-IsP8ArGfr3g"
      id="Tc_cLNyl6Wee0GFEyYZ62F59g_3_2">DLR</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="Duration_5_29_2026_To_5_29_2026_us-gaap_StatementClassOfStockAxis_us-gaap_CommonStockMember_h44FBH_2nk-IsP8ArGfr3g"
      id="Tc_oMX051GeNkGwKPnM7kZyug_3_4">NYSE</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="Duration_5_29_2026_To_5_29_2026_us-gaap_StatementClassOfStockAxis_dlr_SeriesJPreferredStockMember_v9OKz2E1XEqNw4fEiX7PXg"
      id="Tc_JgcCMGycZkqFQYblH9cR5g_4_0">Series&#160;J Cumulative Redeemable Preferred Stock</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="Duration_5_29_2026_To_5_29_2026_us-gaap_StatementClassOfStockAxis_dlr_SeriesJPreferredStockMember_v9OKz2E1XEqNw4fEiX7PXg"
      id="Tc_lyv5xCDDD0qosZDWrMHyLw_4_2">DLR Pr J</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="Duration_5_29_2026_To_5_29_2026_us-gaap_StatementClassOfStockAxis_dlr_SeriesJPreferredStockMember_v9OKz2E1XEqNw4fEiX7PXg"
      id="Tc_PBHoJS5uQEuz999hSYYbcA_4_4">NYSE</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="Duration_5_29_2026_To_5_29_2026_us-gaap_StatementClassOfStockAxis_dlr_SeriesKPreferredStockMember_A3cjrLAwm06iGw10j8jnow"
      id="Tc_uiIOMXnqKUiXdze_ZV9Tqg_5_0">Series&#160;K Cumulative Redeemable Preferred Stock</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="Duration_5_29_2026_To_5_29_2026_us-gaap_StatementClassOfStockAxis_dlr_SeriesKPreferredStockMember_A3cjrLAwm06iGw10j8jnow"
      id="Tc_saqQsnJtAE-Hw8gqcpXRkg_5_2">DLR Pr K</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="Duration_5_29_2026_To_5_29_2026_us-gaap_StatementClassOfStockAxis_dlr_SeriesKPreferredStockMember_A3cjrLAwm06iGw10j8jnow"
      id="Tc_vxA5TgKynEWFLdJdi4VSvw_5_4">NYSE</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="Duration_5_29_2026_To_5_29_2026_us-gaap_StatementClassOfStockAxis_dlr_SeriesLPreferredStockMember_pXqEIITGQ0W9FFJrS62nBA"
      id="Tc_AbFFB7FbRUOTvGLX-sNt_w_6_0">Series L Cumulative Redeemable Preferred Stock</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="Duration_5_29_2026_To_5_29_2026_us-gaap_StatementClassOfStockAxis_dlr_SeriesLPreferredStockMember_pXqEIITGQ0W9FFJrS62nBA"
      id="Tc_JOHxhH-H_k607S4lMxV6sA_6_2">DLR Pr L</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="Duration_5_29_2026_To_5_29_2026_us-gaap_StatementClassOfStockAxis_dlr_SeriesLPreferredStockMember_pXqEIITGQ0W9FFJrS62nBA"
      id="Tc_NX3ixNtd70-NG37hd7Sg4w_6_4">NYSE</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany
      contextRef="Duration_5_29_2026_To_5_29_2026_Efx1nb3exUiWlpP5Ru-8RA"
      id="Tc_ah78YGB0Z0iDrafFThWVmg_1_2">false</dei:EntityEmergingGrowthCompany>
</xbrl>
