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<SEC-DOCUMENT>0001166559-09-000143.txt : 20091006
<SEC-HEADER>0001166559-09-000143.hdr.sgml : 20091006
<ACCEPTANCE-DATETIME>20091006160741
ACCESSION NUMBER:		0001166559-09-000143
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20091005
FILED AS OF DATE:		20091006
DATE AS OF CHANGE:		20091006

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BERKSHIRE HATHAWAY INC
		CENTRAL INDEX KEY:			0001067983
		STANDARD INDUSTRIAL CLASSIFICATION:	FIRE, MARINE & CASUALTY INSURANCE [6331]
		IRS NUMBER:				470813844
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1440 KIEWIT PLZ
		CITY:			OMAHA
		STATE:			NE
		ZIP:			68131
		BUSINESS PHONE:		4023461400

	MAIL ADDRESS:	
		STREET 1:		1440 KIEWIT PLAZA
		CITY:			OMAHA
		STATE:			NE
		ZIP:			68131

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NBH INC
		DATE OF NAME CHANGE:	19980810

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BILL & MELINDA GATES FOUNDATION TRUST
		CENTRAL INDEX KEY:			0001166559
		STATE OF INCORPORATION:			WA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14905
		FILM NUMBER:		091108173

	BUSINESS ADDRESS:	
		STREET 1:		2365 CARILLON POINT
		CITY:			KIRKLAND
		STATE:			WA
		ZIP:			98033
		BUSINESS PHONE:		4258897900

	MAIL ADDRESS:	
		STREET 1:		2365 CARILLON POINT
		CITY:			KIRKLAND
		STATE:			WA
		ZIP:			98033

	FORMER NAME:	
		FORMER CONFORMED NAME:	GATES BILL & MELINDA FOUNDATION
		DATE OF NAME CHANGE:	20020205
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                    <value>60</value>
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                    <value>3285.00</value>
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                    <value>D</value>
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                    <value>1627508</value>
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                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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                    <value></value>
                </natureOfOwnership>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class B Common Stock</value>
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            <transactionDate>
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                <transactionFormType>4</transactionFormType>
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                    <value>10</value>
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                <transactionPricePerShare>
                    <value>3285.11</value>
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                    <value>D</value>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class B Common Stock</value>
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                <transactionFormType>4</transactionFormType>
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                <transactionShares>
                    <value>20</value>
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                <transactionPricePerShare>
                    <value>3285.25</value>
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                    <value>D</value>
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                    <value>1627478</value>
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    <footnotes>
        <footnote id="F1">The sales reported in this filing were made pursuant to Bill &amp; Melinda Gates Foundation Trust's 10b5-1 sales plan to facilitate compliance with federal excise tax rules limiting excess business holdings by private foundations.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Bill &amp; Melinda Gates Foundation Trust By: /s/ Alan Heuberger, Attorney-in-fact for each of the Co-Trustees, William H. Gates III and Melinda French Gates</signatureName>
        <signatureDate>2009-10-06</signatureDate>
    </ownerSignature>
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