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      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
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      <FootnoteTextInd>X</FootnoteTextInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2 - FIN 48 FOOTNOTE:</FormAndLineReferenceDesc>
        <ExplanationTxt>U.S. GAAP REQUIRES MANAGEMENT TO EVALUATE INCOME TAX POSITIONS TAKEN AND ACCRUE AN INCOME TAX LIABILITY IF THE ORGANIZATION HAS TAKEN AN UNCERTAIN POSITION THAT MORE LIKELY THAN NOT WOULD NOT BE SUSTAINED UPON EXAMINATION BY THE IRS. MANAGEMENT HAS EVALUATED THE INCOME TAX POSITIONS TAKEN AND CONCLUDED THAT AS OF DECEMBER 31, 2023 AND 2022 THERE ARE NO UNCERTAIN POSITIONS TAKEN OR EXPECTED TO BE TAKEN THAT WOULD REQUIRE RECOGNITION IN THE CONSOLIDATED FINANCIAL STATEMENTS. THE GENERAL FUND (US), GENERAL FUND (CANADA), PEA INTERNATIONAL, 1800 MASS, COPE AND UNITED WE CAN ARE SUBJECT TO ROUTINE AUDITS BY TAXING JURISDICTIONS; HOWEVER, THERE ARE CURRENTLY NO AUDITS IN PROGRESS FOR ANY TAX PERIODS. IN ADDITION, THERE HAVE BEEN NO TAX RELATED INTEREST OR PENALTIES FOR THE PERIODS PRESENTED IN THESE CONSOLIDATED FINANCIAL STATEMENTS. SHOULD SUCH PENALTIES AND INTEREST BE INCURRED, MANAGEMENT'S POLICY WOULD BE TO RECOGNIZE THEM AS ADMINISTRATIVE EXPENSES.</ExplanationTxt>
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        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
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        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>379451</TotalCompensationRltdOrgsAmt>
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        <PersonNm>MEGAN SWEENEY</PersonNm>
        <TitleTxt>VICE PRESIDENT &amp; TREASURER</TitleTxt>
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        <BonusRelatedOrganizationsAmt>5326</BonusRelatedOrganizationsAmt>
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        <DeferredCompRltdOrgsAmt>94241</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>28070</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
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        <PersonNm>APRIL VERRETT</PersonNm>
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        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>17278</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>318140</TotalCompensationRltdOrgsAmt>
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        <FormAndLineReferenceDesc>PART I, LINE 3 - METHOD FOR ESTABLISHING COMPENSATION:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE TOP MANAGEMENT OFFICIAL IS UNCOMPENSATED BY THE REPORTING ORGANIZATION. THE REPORTING ORGANIZATION RELIES ON A RELATED ORGANIZATION (SEIU) TO ESTABLISH THE COMPENSATION FOR THE TOP MANAGEMENT OFFICIAL. SEIU uses comparable data, an independent compensation consultant and approval by the compensation committee &amp; board in its process of establishing officers compensation.</ExplanationTxt>
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        <FormAndLineReferenceDesc>PART VI, SECTION A, LINE 2 - BUSINESS RELATIONSHIPS:</FormAndLineReferenceDesc>
        <ExplanationTxt>MARY KAY HENRY, MEGAN SWEENEY, AND APRIL VERRETT HAVE A BUSINESS RELATIONSHIP THROUGH SERVICE EMPLOYEES INTERNATIONAL UNION.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART VI, SECTION A, LINE 8B - OTHER COMMITTEES:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ENTITY DOES NOT HAVE OTHER COMMITTEES WITH AUTHORITY TO ACT ON ITS BEHALF OUTSIDE OF THE GOVERNING BODY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART VI, SECTION B, LINE 11B - FORM 990 REVIEW:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FEDERAL FORM 990 IS PREPARED BY AN INDEPENDENT ACCOUNTING FIRM. PRIOR TO ITS FILING, THE FORM IS PRESENTED TO THE BOARD OF DIRECTORS FOR THEIR REVIEW OF THE CONTENT WITHIN THE FORM 990.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART VI, SECTION B, LINES 12 - 14 - GOVERNING POLICIES:</FormAndLineReferenceDesc>
        <ExplanationTxt>1800 MASSACHUSETTS AVENUE CORPORATION DOES NOT HAVE ITS OWN SEPARATELY WRITTEN DEFINED POLICIES AND PROCEDURES, ITS OFFICERS ARE COVERED UNDER THE GOVERNING POLICIES OF THE SERVICE EMPLOYERS INTERNATIONAL UNION (SEIU) AS THE ORPORATION IS THE TITLE HOLDING COMPANY ON SEIU'S BEHALF OF ITS HEADQUARTERS. THE CORPORATION'S OFFICERS FOLLOW SEIU'S CONFLICT OF INTEREST, WHISTLEBLOWER AND DOCUMENT RETENTION POLICIES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART VI, SECTION C, LINE 19 - PUBLIC ACCESS TO DOCUMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION DOES NOT MAKE AVAILABLE TO THE PUBLIC ITS GOVERNING DOCUMENTS, POLICIES AND FINANCIAL STATEMENTS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XI, LINE 9 - CHANGE IN NET ASSETS:</FormAndLineReferenceDesc>
        <ExplanationTxt>GAAP DEFERRED RENTAL INCOME $ (332,233)</ExplanationTxt>
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    </IRS990ScheduleO>
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      <TransferFromOtherOrgInd>true</TransferFromOtherOrgInd>
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</Return>