    <SEC-DOCUMENT>0000004457-22-000127-index.html : 20221219
    <SEC-HEADER>0000004457-22-000127.hdr.sgml : 20221219
    <ACCEPTANCE-DATETIME>20221219082024
    ACCESSION NUMBER:		0000004457-22-000127
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		20
    CONFORMED PERIOD OF REPORT:	20221219
    ITEM INFORMATION:		Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20221219
    DATE AS OF CHANGE:		20221219

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			U-Haul Holding Co /NV/
    		CENTRAL INDEX KEY:			0000004457
    		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-AUTO RENTAL & LEASING (NO DRIVERS) [7510]
    		IRS NUMBER:				880106815
    		STATE OF INCORPORATION:			NV
    		FISCAL YEAR END:			0331

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-11255
    		FILM NUMBER:		221469661

    	BUSINESS ADDRESS:
    		STREET 1:		5555 KIETZKE LANE STE 100
    		CITY:			RENO
    		STATE:			NV
    		ZIP:			89511
    		BUSINESS PHONE:		7756886300

    	MAIL ADDRESS:
    		STREET 1:		5555 KIETZKE LANE
    		STREET 2:		SUITE 100
    		CITY:			RENO
    		STATE:			NV
    		ZIP:			89511

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	AMERCO /NV/
    		DATE OF NAME CHANGE:	19920703

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	AMERCO
    		DATE OF NAME CHANGE:	19770926
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>uhal-20221219.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: uhal-20221219.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-3.2
    <SEQUENCE>2
    <FILENAME>ex32bylaws.htm
    <DESCRIPTION>RESTATED BY-LAWS
    <TEXT>
    Document 2 - file: ex32bylaws.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-3.3
    <SEQUENCE>3
    <FILENAME>ex33articlesofmerger.htm
    <DESCRIPTION>ARTICLE OF MERGER
    <TEXT>
    Document 3 - file: ex33articlesofmerger.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>image1.jpg
    <DESCRIPTION>IMAGE 1 OF 4 EX 3.3
    <TEXT>
    Document 4 - file: image1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>image2.jpg
    <DESCRIPTION>IMAGE 2 OF 4 EX 3.3
    <TEXT>
    Document 5 - file: image2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>image3.jpg
    <DESCRIPTION>IMAGE 3 OF 4 EX 3.3
    <TEXT>
    Document 6 - file: image3.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>image4.jpg
    <DESCRIPTION>IMAGE 4 OF 4 EX 3.3
    <TEXT>
    Document 7 - file: image4.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>8
    <FILENAME>uhal-20220719.xsd
    <DESCRIPTION>SCHEMA
    <TEXT>
    Document 8 - file: uhal-20220719.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.CAL
    <SEQUENCE>9
    <FILENAME>uhal-20220719_cal.xml
    <DESCRIPTION>CALCULATION
    <TEXT>
    Document 9 - file: uhal-20220719_cal.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.DEF
    <SEQUENCE>10
    <FILENAME>uhal-20220719_def.xml
    <DESCRIPTION>DEFINITION
    <TEXT>
    Document 10 - file: uhal-20220719_def.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>11
    <FILENAME>uhal-20220719_lab.xml
    <DESCRIPTION>LABEL
    <TEXT>
    Document 11 - file: uhal-20220719_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>12
    <FILENAME>uhal-20220719_pre.xml
    <DESCRIPTION>PRESENTATION
    <TEXT>
    Document 12 - file: uhal-20220719_pre.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>13
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 13 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>14
    <FILENAME>uhal-20221219_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 14 - file: uhal-20221219_htm.html

    Document 14 - RAW XML: uhal-20221219_htm.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EXCEL
    <SEQUENCE>15
    <FILENAME>Financial_Report.xlsx
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 15 - file: Financial_Report.xlsx

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>16
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 16 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>17
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 17 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>18
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 18 - file: FilingSummary.html

    Document 18 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>20
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 20 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>21
    <FILENAME>0000004457-22-000127-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 21 - file: 0000004457-22-000127-xbrl.zip

    </DOCUMENT>
    </SEC-DOCUMENT>