<?xml version="1.0" encoding="US-ASCII"?>
<!-- DFIN New ActiveDisclosure (SM) XBRL Schema Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date :2026-06-15T11:46:48.7433+00:00 -->
<!-- Copyright (c) 2026 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
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          <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/ebp/elts/us-gaap-ebp-2025.xsd#us-gaap-ebp_EmployeeBenefitPlanTaxStatusTable" xlink:label="us-gaap-ebp_EmployeeBenefitPlanTaxStatusTable"/>
          <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/ebp/elts/us-gaap-ebp-2025.xsd#us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentPartyInInterest" xlink:label="us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentPartyInInterest"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_Vanguard2040TargetRetirementInvestorClassMember" xlink:label="brka_Vanguard2040TargetRetirementInvestorClassMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_Vanguard2070TargetRetirementInvestorClassMember" xlink:label="brka_Vanguard2070TargetRetirementInvestorClassMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_Fidelity500IndexFundMember" xlink:label="brka_Fidelity500IndexFundMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_LargeCapGrowthFundIIIClassR1Member" xlink:label="brka_LargeCapGrowthFundIIIClassR1Member"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_Vanguard2020TargetRetirementInvestorClassMember" xlink:label="brka_Vanguard2020TargetRetirementInvestorClassMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_VanguardFederalMoneyMarketFundInvestorClassMember" xlink:label="brka_VanguardFederalMoneyMarketFundInvestorClassMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_VanguardValueIndexFundAdmiralClassMember" xlink:label="brka_VanguardValueIndexFundAdmiralClassMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_BerkshireHathawayCommonStockClassBMember" xlink:label="brka_BerkshireHathawayCommonStockClassBMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_Vanguard2045TargetRetirementInvestorClassMember" xlink:label="brka_Vanguard2045TargetRetirementInvestorClassMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_VictorySycamoreEstablishedValueFundClassIMember" xlink:label="brka_VictorySycamoreEstablishedValueFundClassIMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_TouchstoneLargeCapFocusedFundClassAMember" xlink:label="brka_TouchstoneLargeCapFocusedFundClassAMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_FidelityInternationalBondIndexInstitutionalFundMember" xlink:label="brka_FidelityInternationalBondIndexInstitutionalFundMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_Vanguard2065TargetRetirementInvestorClassMember" xlink:label="brka_Vanguard2065TargetRetirementInvestorClassMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_CorePlusBondFundClassR1Member" xlink:label="brka_CorePlusBondFundClassR1Member"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_Vanguard2025TargetRetirementInvestorClassMember" xlink:label="brka_Vanguard2025TargetRetirementInvestorClassMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_Vanguard2030TargetRetirementInvestorClassMember" xlink:label="brka_Vanguard2030TargetRetirementInvestorClassMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_MFSInternationalDiversificationFundClassR4Member" xlink:label="brka_MFSInternationalDiversificationFundClassR4Member"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_CarillonEagleMidCapGrowthFundClassIMember" xlink:label="brka_CarillonEagleMidCapGrowthFundClassIMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_MerrillLynchBankDepositProgramMember" xlink:label="brka_MerrillLynchBankDepositProgramMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_Vanguard2050TargetRetirementInvestorClassMember" xlink:label="brka_Vanguard2050TargetRetirementInvestorClassMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_VanguardTargetIncomeRetirementInvestorClassMember" xlink:label="brka_VanguardTargetIncomeRetirementInvestorClassMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_Vanguard2055TargetRetirementInvestorClassMember" xlink:label="brka_Vanguard2055TargetRetirementInvestorClassMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_VanguardSmallCapIndexFundInstitutionalSharesMember" xlink:label="brka_VanguardSmallCapIndexFundInstitutionalSharesMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_FidelityUSBondIndexFundMember" xlink:label="brka_FidelityUSBondIndexFundMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_Vanguard2035TargetRetirementInvestorClassMember" xlink:label="brka_Vanguard2035TargetRetirementInvestorClassMember"/>
          <link:loc xlink:type="locator" xlink:href="brka-20251231.xsd#brka_Vanguard2060TargetRetirementInvestorClassMember" xlink:label="brka_Vanguard2060TargetRetirementInvestorClassMember"/>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Change in Net Asset Available for Benefit, Increase [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additions:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForPaymentToParticipant_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForPaymentToParticipant_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Benefits paid to participants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanTrusteeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Trustee [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanTrusteeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Trustee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanReceivableAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Receivables:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanReceivableAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Receivable [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 2 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 2</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentLevel3ReconciliationIncreaseForTransferToLevel3_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Investment, Level 3 Reconciliation, Increase from Transfer into Level 3</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentLevel3ReconciliationIncreaseForTransferToLevel3_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transfer into level 3 investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500PaymentToParticipantDecreaseForAllocationToWithdrawingParticipantPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Reconciliation to Form 5500, Payment to Participant, Decrease from Allocation to Withdrawing Participant, Paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500PaymentToParticipantDecreaseForAllocationToWithdrawingParticipantPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amounts allocated to withdrawing participants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500PaymentToParticipantDecreaseForAllocationToWithdrawingParticipantPaid_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Amounts allocated to withdrawing participants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500PaymentToParticipantDecreaseForAllocationToWithdrawingParticipantPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Amounts allocated to withdrawing participants at December 31, 2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Related Party and Party-in-Interest Transactions [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Period Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanEmployerContributionReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Employer Contribution, Receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanEmployerContributionReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Company contributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanForfeitedNonvestedAccountDecreaseForEmployerContribution_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Forfeited Nonvested Account, Decrease from Employer Contribution</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanForfeitedNonvestedAccountDecreaseForEmployerContribution_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee benefit plan applicable forfeiture balances against fourth quarter</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionNetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Change in net assets available for benefits per the Form 5500</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionNetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Form 5500 Caption, Net Income (Loss)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanTaxStatusAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Tax Status [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanForfeitedNonvestedAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Forfeited Nonvested Account</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanForfeitedNonvestedAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee benefit plan forfeiture balances</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Description of Plan [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Description of Plan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestIncomeOnNoteReceivableFromParticipant_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest income on notes receivable from participants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestIncomeOnNoteReceivableFromParticipant_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIdentifierAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Identifier [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Administrative expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Description of Plan [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanScheduleOfAssetsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Employee Benefit Plan Schedule of Assets [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanScheduleOfAssetsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Employee benefit plan schedule of assets.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanScheduleOfAssetsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanEmployerContributionMatchingPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee benefit plan employer contribution matching percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanEmployerContributionMatchingPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Employer Contribution, Matching Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentIssuerNameExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Investment, Issuer Name [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Investment, Fair Value and NAV [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanLiabilityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Liability [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanLiabilityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liabilities:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Accounting Policy [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Schedule of Asset Held for Investment [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Statement of Net Asset Available for Benefit [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanContributionTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Contribution [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee benefit plan maximum loan amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Collective Investment Trusts</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Collective Trust [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amendment Flag</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForEmployerContribution_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash and Noncash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForEmployerContribution_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash and Noncash, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForEmployerContribution_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Company</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForEmployerContribution_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Employee benefit plan employer contribution matching amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Change in Net Asset Available for Benefit, Decrease [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deductions:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMinimumBorrowingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMinimumBorrowingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee benefit plan minimum loan amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanPaymentToParticipantPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Benefit Payments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanPaymentToParticipantPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Payment to Participant [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanAdministrativeExpenseLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Employee Benefit Plan Administrative Expense [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanAdministrativeExpenseLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Employee Benefit Plan Administrative Expense [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanAdministrativeExpenseLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">EBP, Administrative Expenses [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanParticipantContributionReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Participant Contribution, Receivable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanParticipantContributionReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Participant contributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Schedule of Asset Held for Investment [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentTypeExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Investment, Current Value, Type [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Type [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Type</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Central Index Key</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Investment [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanVestingPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Employee Benefit Plan VestingPercentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanVestingPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Employee benefit plan vesting percentage.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanVestingPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee benefit plan vesting percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Accounting Policy [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanBasisOfAccountingPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basis of Accounting</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanBasisOfAccountingPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Basis of Accounting [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Description of Plan [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Stock</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Employer, Common Stock [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestAndDividendIncomeOnInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestAndDividendIncomeOnInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestAndDividendIncomeOnInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dividends and interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionNetAssetAvailableForBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Form 5500 Caption, Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionNetAssetAvailableForBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net assets available for benefits per the Form 5500</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionNetAssetAvailableForBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net assets available for benefits per the Form 5500</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanCash_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-interest-bearing cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanCash_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Noninterest-Bearing Cash</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentNumberOfShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Investment, Number of Shares</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentNumberOfShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of shares held</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Minimum [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Minimum</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Related Parties and Parties-In-Interest</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Related Party and Party-in-Interest Transactions [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EBP014Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">EBP 014</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EBP014Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP 014 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EBP014Member_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">EBP 014.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncrease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Change in Net Asset Available for Benefit, Increase</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncrease_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total additions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 3 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 3</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContribution_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Change in Net Asset Available for Benefit, Increase from Contribution</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContribution_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total contributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentInvestmentExcludingPlanInterestInMasterTrustParticipationStatusExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanNoteReceivableFromParticipantBasisSpreadOnVariableRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Employee Benefit Plan Note Receivable from Participant Basis Spread on Variable Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanNoteReceivableFromParticipantBasisSpreadOnVariableRate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Employee benefit plan note receivable from participant basis spread on variable rate.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanNoteReceivableFromParticipantBasisSpreadOnVariableRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee benefit plan note receivable from participants interest rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500LineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Reconciliation of Financial Statement to Form 5500 [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Measured at NAV per Share</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measured at Net Asset Value Per Share [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Statement of Net Asset Available for Benefit [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContributionExcludingRollover_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContributionExcludingRollover_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Participants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContributionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contributions:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContributionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanTaxDeterminationLetterDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Tax Determination Letter, Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanTaxDeterminationLetterDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tax determination letter, obtained</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total liabilities</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Liability</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanParticipantContributionAutomaticDeferralRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Participant Contribution, Automatic, Deferral Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanParticipantContributionAutomaticDeferralRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee benefit plan automatic deferral rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Related Party and Party-in-Interest Transactions [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value, Ending Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value, Beginning Balance</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total investments at fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Investments, at fair value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanUseOfEstimatePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Use of Estimate [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanUseOfEstimatePolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Estimates</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500PaymentToParticipantIncreaseForAllocationToWithdrawingParticipantNotYetPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Reconciliation to Form 5500, Payment to Participant, Increase from Allocation to Withdrawing Participant, Not yet Paid</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500PaymentToParticipantIncreaseForAllocationToWithdrawingParticipantNotYetPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amounts allocated to withdrawing participants at December 31, 2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500PaymentToParticipantIncreaseForAllocationToWithdrawingParticipantNotYetPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Amounts allocated to withdrawing participants at December 31, 2024</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500PaymentToParticipantIncreaseForAllocationToWithdrawingParticipantNotYetPaid_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel">Amounts allocated to withdrawing participants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500PaymentToParticipantIncreaseForAllocationToWithdrawingParticipantNotYetPaid_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Amounts allocated to withdrawing participants at December 31, 2025</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MutualFundMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Mutual Funds</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MutualFundMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Mutual Fund [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentAcquiredExcludingPlanInterestInMasterTrustCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Investment Acquired, Excluding Plan Interest in Master Trust, Cost</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentAcquiredExcludingPlanInterestInMasterTrustCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash value of investments by the Plan</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanAdministrativeExpenseTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Employee Benefit Plan Administrative Expense [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanAdministrativeExpenseTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Employee benefit plan administrative expense.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanAdministrativeExpenseTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Administrative Expenses</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanMaximumAnnualCatchUpContributionLimitAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Employee Benefit Plan Maximum Annual Catch Up Contribution Limit Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanMaximumAnnualCatchUpContributionLimitAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Employee benefit plan maximum Annual catch up contribution limit amount.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanMaximumAnnualCatchUpContributionLimitAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee benefit plan catch-up contribution limit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanSummaryOfAccountingPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Summary of Significant Accounting Policies</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanSummaryOfAccountingPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Summary of Accounting Policy [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Measurements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Investment, Fair Value and NAV [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Description of Plan and Accounting Change [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500TableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reconciliation of Net Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500TableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Reconciliation of Financial Statement to Form 5500 [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Statement of Change in Net Asset Available for Benefit [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipant_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Note Receivable from Participant</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipant_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notes receivable from participants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Period End Date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EbpRiskAndUncertaintyTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Risk and Uncertainty [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanContributionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Contribution [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingToTotalAccountPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingToTotalAccountPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee benefit plan maximum borrowing percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanTaxDeterminationLetterObtained_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Tax Determination Letter, Obtained [true false]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanTaxDeterminationLetterObtained_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Tax determination letter, date</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Related Party and Party-in-Interest Transactions [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanPlanTerminationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Plan Termination [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanPlanTerminationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Plan Termination</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanParticipantContributionPretaxMaximumAnnualCompensationAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee benefit plan participant contribution amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanParticipantContributionPretaxMaximumAnnualCompensationAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Participant Contribution, Pretax, Maximum Annual Compensation, Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CoverAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cover [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTypeCategorizationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments [Domain]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestmentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment income:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestmentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EbpRiskAndUncertaintyAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Risk and Uncertainty [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">End of year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Net Asset Available for Benefit</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Beginning of year</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net assets available for benefits per the financial statements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net assets available for benefits</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Investment, Fair Value and NAV [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Fair Value Hierarchy of Plan's Investments and Investments Measured at Fair Value Based on NAV</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanContributionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Contribution [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefitAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Net Asset Available for Benefit [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefitAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net assets available for benefits:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Schedule of Asset Held for Investment [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanExcessContributionPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Excess Contribution Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanExcessContributionPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Excess contributions payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentInvestmentExcludingPlanInterestInMasterTrustCurrentValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Note Receivable from Participant [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notes Receivable From Participants</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentLevel3ReconciliationDecreaseForTransferFromLevel3_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Investment, Level 3 Reconciliation, Decrease from Transfer out of Level 3</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentLevel3ReconciliationDecreaseForTransferFromLevel3_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transfer out of level 3 investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Schedule of Asset Held for Investment [Table Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Statement of Net Asset Available for Benefit [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Year Focus</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForGainLossOnInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForGainLossOnInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForGainLossOnInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net appreciation in fair value of investments</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForGainLossOnInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net realized/unrealized depreciation in fair value of investment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanEmployerContributionParticipantCompensationMatchedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee benefit plan employer contribution maximum matching percentage of employee</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanEmployerContributionParticipantCompensationMatchedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Employer Contribution, Participant Compensation Matched, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Statement of Change in Net Asset Available for Benefit [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanAdministrativeExpenseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Employee Benefit Plan Administrative Expense [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanAdministrativeExpenseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Employee benefit plan administrative expense.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total assets</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Asset</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanContributionPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contributions</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanContributionPolicyTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Contribution [Policy Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanMaximumAnnualCatchUpContributionLimitForParticipantsAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Employee Benefit Plan Maximum Annual Catch Up Contribution Limit for Participants Amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanMaximumAnnualCatchUpContributionLimitForParticipantsAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Employee benefit plan maximum annual catch up contribution limit for participants amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanMaximumAnnualCatchUpContributionLimitForParticipantsAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee benefit plan maximum annual catch up contribution limit for participants amount</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanParticipantContributionAutomaticIncreasedRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Employee Benefit Plan Participant Contribution Automatic Increased Rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanParticipantContributionAutomaticIncreasedRate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Employee benefit plan participant contribution automatic increased rate.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanParticipantContributionAutomaticIncreasedRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee benefit plan participant contribution automatic increased rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanParticipantContributionPretaxMaximumAnnualCompensationToTotalCompensationPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee benefit plan participant contribution rate</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanParticipantContributionPretaxMaximumAnnualCompensationToTotalCompensationPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MoneyMarketFundsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Money Market Funds [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MoneyMarketFundsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and Cash Equivalents (Money Market Funds)</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanPlanNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Plan Number</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Investment, Fair Value and NAV [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LegalEntityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Legal Entity [Axis]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_PutnamStableValueFundClass20Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Putnam Stable Value Fund Class 20</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_PutnamStableValueFundClass20Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Putnam Stable Value Fund Class 20 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_PutnamStableValueFundClass20Member_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Putnam stable value fund class 20.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EbpRiskAndUncertaintyLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Risk and Uncertainty [Line Items]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanAssetAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Assets:</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanAssetAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Asset [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total investment income</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanFairValueInvestmentNetAssetValueRedemptionFrequency_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Redemption Frequency</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanFairValueInvestmentNetAssetValueRedemptionFrequency_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Employee Benefit Plan Fair Value Investment Net Asset Value Redemption Frequency</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_EmployeeBenefitPlanFairValueInvestmentNetAssetValueRedemptionFrequency_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Employee benefit plan fair value investment net asset value redemption frequency.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Investment, Fair Value and NAV [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContributionRollover_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContributionRollover_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Rollovers</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanContributionTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Contribution [Text Block]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanContributionTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Excess Contributions Payable</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Asset Held for Investment</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestment_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">EBP, Asset Held for Investment, Total</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanReconciliationToForm5500Table_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Reconciliation of Financial Statement to Form 5500 [Table]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Registrant Name</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_FairValueInputsLevel1AndLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fair value inputs level 1 and level 2.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Tax Identification Number</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecrease_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net increase in net assets available for benefits per the financial statements</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanTaxStatusTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Tax Status [Table]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentPartyInInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">EBP, Asset Held for Investment, Party-in-Interest [true false]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Vanguard2040TargetRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vanguard 2040 Target Retirement Investor Class [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Vanguard2070TargetRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vanguard 2070 Target Retirement Investor Class [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Fidelity500IndexFundMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fidelity 500 Index Fund [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Fidelity500IndexFundMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fidelity 500 index fund.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Vanguard2020TargetRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vanguard 2020 Target Retirement Investor Class [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Vanguard2070TargetRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Vanguard 2070 target retirement investor class.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_VanguardFederalMoneyMarketFundInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Vanguard federal money market fund investor class.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_VanguardValueIndexFundAdmiralClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Vanguard value index fund admiral class.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_BerkshireHathawayCommonStockClassBMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Berkshire Hathaway Common Stock Class B [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Vanguard2045TargetRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vanguard 2045 Target Retirement Investor Class [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_VictorySycamoreEstablishedValueFundClassIMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Victory Sycamore Established Value Fund Class I [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_FidelityInternationalBondIndexInstitutionalFundMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fidelity international bond index institutional fund.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_FidelityInternationalBondIndexInstitutionalFundMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fidelity International Bond Index Institutional Fund [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Vanguard2065TargetRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vanguard 2065 Target Retirement Investor Class [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_VictorySycamoreEstablishedValueFundClassIMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Victory sycamore established value fund class I.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Vanguard2025TargetRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Vanguard 2025 target retirement investor class.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Vanguard2030TargetRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vanguard 2030 Target Retirement Investor Class [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_MFSInternationalDiversificationFundClassR4Member_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">MFS international diversification fund class R4.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_CarillonEagleMidCapGrowthFundClassIMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Carillon Eagle Mid Cap Growth Fund Class I [Member]</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Vanguard2030TargetRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Vanguard 2030 target retirement investor class.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Vanguard2050TargetRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vanguard 2050 Target Retirement Investor Class [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_VanguardTargetIncomeRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vanguard Target Income Retirement Investor Class [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Vanguard2055TargetRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Vanguard 2055 target retirement investor class.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_VanguardSmallCapIndexFundInstitutionalSharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Vanguard small cap index fund institutional shares.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_FidelityUSBondIndexFundMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Fidelity us bond index fund.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_FidelityUSBondIndexFundMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fidelity US Bond Index Fund [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_VanguardValueIndexFundAdmiralClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vanguard Value Index Fund Admiral Class [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_TouchstoneLargeCapFocusedFundClassAMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Touchstone large cap focused fund class A.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_VanguardFederalMoneyMarketFundInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vanguard Federal Money Market Fund Investor Class [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Vanguard2025TargetRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vanguard 2025 Target Retirement Investor Class [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_VanguardTargetIncomeRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Vanguard target income retirement investor class.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_MFSInternationalDiversificationFundClassR4Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">MFS International Diversification Fund Class R4 [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Vanguard2035TargetRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vanguard 2035 Target Retirement Investor Class [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Vanguard2035TargetRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Vanguard 2035 target retirement investor class.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Vanguard2050TargetRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Vanguard 2050 target retirement investor class.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Vanguard2020TargetRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Vanguard 2020 target retirement investor class.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Vanguard2060TargetRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vanguard 2060 Target Retirement Investor Class [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Vanguard2040TargetRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Vanguard 2040 target retirement investor class.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_CarillonEagleMidCapGrowthFundClassIMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Carillon eagle mid cap growth fund class I.</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_Vanguard2065TargetRetirementInvestorClassMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Vanguard 2065 target retirement investor class.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_LargeCapGrowthFundIIIClassR1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Large cap growth fund III class R1.</link:label>
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          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_VanguardSmallCapIndexFundInstitutionalSharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Vanguard Small Cap Index Fund Institutional Shares [Member]</link:label>
          <link:label xml:lang="en-US" xlink:type="resource" xlink:label="brka_BerkshireHathawayCommonStockClassBMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Berkshire hathaway common stock Class B.</link:label>
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  <xsd:element id="brka_CorePlusBondFundClassR1Member" name="CorePlusBondFundClassR1Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="brka_EBP014Member" name="EBP014Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="brka_EmployeeBenefitPlanScheduleOfAssetsTextBlock" name="EmployeeBenefitPlanScheduleOfAssetsTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="brka_FairValueInputsLevel1AndLevel2Member" name="FairValueInputsLevel1AndLevel2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="brka_Vanguard2040TargetRetirementInvestorClassMember" name="Vanguard2040TargetRetirementInvestorClassMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="brka_EmployeeBenefitPlanFairValueInvestmentNetAssetValueRedemptionFrequency" name="EmployeeBenefitPlanFairValueInvestmentNetAssetValueRedemptionFrequency" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="brka_EmployeeBenefitPlanAdministrativeExpenseLineItems" name="EmployeeBenefitPlanAdministrativeExpenseLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="brka_Vanguard2065TargetRetirementInvestorClassMember" name="Vanguard2065TargetRetirementInvestorClassMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="brka_EmployeeBenefitPlanAdministrativeExpenseAbstract" name="EmployeeBenefitPlanAdministrativeExpenseAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="brka_FidelityUSBondIndexFundMember" name="FidelityUSBondIndexFundMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="brka_VanguardTargetIncomeRetirementInvestorClassMember" name="VanguardTargetIncomeRetirementInvestorClassMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
</xsd:schema>
