BERKSHIRE HATHAWAY INC Presentation Networks

Line Image Concept Label Concept Type Period type Balance Concept name
* Network: (000010 - Document - Document Information)
1 dei: Document information xbrli:stringItemType duration dei:DocumentInformationLineItems
2 dei: Document type us-types:SECReportItemType duration dei:DocumentType
3 dei: Amendment flag xbrli:booleanItemType duration dei:AmendmentFlag
4 dei: Document period end date xbrli:dateItemType duration dei:DocumentPeriodEndDate
5 dei: Amendment description xbrli:stringItemType duration dei:AmendmentDescription
* Network: (000020 - Document - Entity Information)
6 dei: Entity us-types:textBlockItemType duration dei:EntityTextBlock
7 dei: Entity Information xbrli:stringItemType duration dei:EntityInformationLineItems
8 dei: Entity registrant name xbrli:normalizedStringItemType duration dei:EntityRegistrantName
9 dei: Entity central index key us-types:centralIndexKeyItemType duration dei:EntityCentralIndexKey
10 dei: Current fiscal year end date xbrli:gMonthDayItemType duration dei:CurrentFiscalYearEndDate
11 dei: Entity well-known seasoned issuer us-types:yesNoItemType duration dei:EntityWellKnownSeasonedIssuer
12 dei: Entity voluntary filers us-types:yesNoItemType duration dei:EntityVoluntaryFilers
13 dei: Entity current reporting status us-types:yesNoItemType duration dei:EntityCurrentReportingStatus
14 dei: Entity filer category us-types:filerCategoryItemType duration dei:EntityFilerCategory
15 dei: Entity public float xbrli:monetaryItemType instant credit dei:EntityPublicFloat
16 us-gaap: Statement xbrli:stringItemType duration us-gaap:StatementTable
17 us-gaap: Class of Stock [Axis] xbrli:stringItemType duration us-gaap:StatementClassOfStockAxis
18 us-gaap: Class of Stock us-types:domainItemType duration us-gaap:ClassOfStockDomain
19 us-gaap: Common Stock us-types:domainItemType duration us-gaap:CommonStockMember
20 us-gaap: Class A us-types:domainItemType duration us-gaap:CommonClassAMember
21 us-gaap: Class B us-types:domainItemType duration us-gaap:CommonClassBMember
22 dei: Entity Listing items xbrli:stringItemType duration dei:EntityListingsLineItems
23 dei: Entity common stock, shares outstanding xbrli:sharesItemType instant dei:EntityCommonStockSharesOutstanding
* Network: (000030 - Statement - Consolidated Balance Sheets)
24 us-gaap: Consolidated Balance Sheets xbrli:stringItemType duration us-gaap:StatementOfFinancialPositionAbstract
25 us-gaap: Statement xbrli:stringItemType duration us-gaap:StatementTable
26 us-gaap: Statement Business Segment xbrli:stringItemType duration us-gaap:StatementBusinessSegmentsAxis
27 us-gaap: Segment us-types:domainItemType duration us-gaap:SegmentBusinessDomain
28 brka: Insurance and Other: us-types:domainItemType duration brka:SegmentInsuranceAndOtherMember
29 brka: Utilities and Energy: us-types:domainItemType duration brka:SegmentUtilitiesAndEnergyMember
30 brka: Finance and Financial Products: us-types:domainItemType duration brka:SegmentFinanceAndFinancialProductsMember
31 us-gaap: Statement items xbrli:stringItemType duration us-gaap:StatementLineItems
32 us-gaap: ASSETS xbrli:stringItemType duration us-gaap:AssetsAbstract
33 us-gaap: Cash and cash equivalents xbrli:monetaryItemType instant debit us-gaap:CashAndCashEquivalentsAtCarryingValue
34 us-gaap: Investments in fixed maturity securities xbrli:monetaryItemType instant debit us-gaap:MarketableSecuritiesFixedMaturities
35 us-gaap: Investments in equity securities xbrli:monetaryItemType instant debit us-gaap:MarketableSecuritiesEquitySecurities
36 us-gaap: Other investments xbrli:monetaryItemType instant debit us-gaap:OtherInvestments
37 us-gaap: Receivables xbrli:monetaryItemType instant debit us-gaap:PremiumsAndOtherReceivablesNet
38 us-gaap: Inventories xbrli:monetaryItemType instant debit us-gaap:InventoryNet
39 us-gaap: Property, plant and equipment xbrli:monetaryItemType instant debit us-gaap:PropertyPlantAndEquipmentNet
40 us-gaap: Loans and finance receivables xbrli:monetaryItemType instant debit us-gaap:LoansAndLeasesReceivableNetReportedAmount
41 us-gaap: Goodwill xbrli:monetaryItemType instant debit us-gaap:Goodwill
42 us-gaap: Other assets xbrli:monetaryItemType instant debit us-gaap:OtherAssets
43 us-gaap: Total assets xbrli:monetaryItemType instant debit us-gaap:Assets
44 us-gaap: LIABILITIES AND SHAREHOLDERS' EQUITY xbrli:stringItemType duration us-gaap:LiabilitiesAndStockholdersEquityAbstract
45 us-gaap: LIABILITIES xbrli:stringItemType duration us-gaap:LiabilitiesAbstract
46 us-gaap: Losses and loss adjustment expenses xbrli:monetaryItemType instant credit us-gaap:LiabilityForClaimsAndClaimsAdjustmentExpensePropertyCasualtyLiability
47 us-gaap: Unearned premiums xbrli:monetaryItemType instant credit us-gaap:UnearnedPremiums
48 us-gaap: Life and health insurance benefits xbrli:monetaryItemType instant credit us-gaap:LiabilityForFuturePolicyBenefits
49 us-gaap: Accounts payable, accruals and other liabilities xbrli:monetaryItemType instant credit us-gaap:AccountsPayableAndAccruedLiabilities
50 us-gaap: Derivative contract liabilities xbrli:monetaryItemType instant credit us-gaap:DerivativeLiabilities
51 us-gaap: Notes payable and other borrowings xbrli:monetaryItemType instant credit us-gaap:NotesPayable
52 brka: Income taxes, principally deferred xbrli:monetaryItemType instant credit brka:IncomeTaxesPrincipallyDeferred
53 us-gaap: Total liabilities xbrli:monetaryItemType instant credit us-gaap:Liabilities
54 us-gaap: SHAREHOLDERS' EQUITY xbrli:stringItemType duration us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract
55 us-gaap: Common stock and capital in excess of par value xbrli:monetaryItemType instant credit us-gaap:CommonStockIncludingAdditionalPaidInCapital
56 us-gaap: Accumulated other comprehensive income xbrli:monetaryItemType instant credit us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
57 us-gaap: Retained earnings xbrli:monetaryItemType instant credit us-gaap:RetainedEarningsAccumulatedDeficit
58 us-gaap: Berkshire Hathaway shareholders' equity xbrli:monetaryItemType instant credit us-gaap:StockholdersEquity
59 us-gaap: Noncontrolling interests xbrli:monetaryItemType instant credit us-gaap:MinorityInterest
60 us-gaap: Total shareholders' equity xbrli:monetaryItemType instant credit us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
61 us-gaap: Total liabilities and shareholders' equity xbrli:monetaryItemType instant credit us-gaap:LiabilitiesAndStockholdersEquity
* Network: (000040 - Statement - Consolidated Statements of Earnings)
62 us-gaap: Consolidated Statements of Earnings xbrli:stringItemType duration us-gaap:IncomeStatementAbstract
63 us-gaap: Statement xbrli:stringItemType duration us-gaap:StatementTable
64 us-gaap: Statement Business Segment xbrli:stringItemType duration us-gaap:StatementBusinessSegmentsAxis
65 us-gaap: Segment us-types:domainItemType duration us-gaap:SegmentBusinessDomain
66 brka: Insurance and Other: us-types:domainItemType duration brka:SegmentInsuranceAndOtherMember
67 brka: Utilities and Energy: us-types:domainItemType duration brka:SegmentUtilitiesAndEnergyMember
68 brka: Finance and Financial Products: us-types:domainItemType duration brka:SegmentFinanceAndFinancialProductsMember
69 us-gaap: Statement items xbrli:stringItemType duration us-gaap:StatementLineItems
70 us-gaap: Net income loss attributable to reporting entity xbrli:stringItemType duration us-gaap:NetIncomeLossAttributableToReportingEntityAbstract
71 us-gaap: Income loss from continuing operations before income taxes minority xbrli:stringItemType duration us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestmentsAbstract
72 us-gaap: Revenues: xbrli:stringItemType duration us-gaap:RevenuesAbstract
73 us-gaap: Insurance premiums earned xbrli:monetaryItemType duration credit us-gaap:PremiumsEarnedNet
74 us-gaap: Sales and service revenues xbrli:monetaryItemType duration credit us-gaap:SalesRevenueNet
75 us-gaap: Interest, dividend and other investment income xbrli:monetaryItemType duration credit us-gaap:InvestmentIncomeInterestAndDividend
76 us-gaap: Interest income xbrli:monetaryItemType duration credit us-gaap:InvestmentIncomeInterest
77 brka: Investment gains/losses xbrli:monetaryItemType duration credit brka:GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments
78 us-gaap: Operating revenues xbrli:monetaryItemType duration credit us-gaap:RegulatedAndUnregulatedOperatingRevenue
79 us-gaap: Derivative gains/losses xbrli:monetaryItemType duration credit us-gaap:GainLossOnDerivativeInstrumentsNetPretax
80 us-gaap: Other revenues xbrli:monetaryItemType duration credit us-gaap:OtherIncome
81 us-gaap: Other xbrli:monetaryItemType duration credit us-gaap:RevenueOtherFinancialServices
82 brka: Other-than-temporary impairment losses on investments xbrli:monetaryItemType duration debit brka:OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet
83 us-gaap: Total revenues xbrli:monetaryItemType duration credit us-gaap:Revenues
84 us-gaap: Costs and expenses: xbrli:stringItemType duration us-gaap:CostsAndExpensesAbstract
85 us-gaap: Insurance losses and loss adjustment expenses xbrli:monetaryItemType duration debit us-gaap:IncurredClaimsPropertyCasualtyAndLiability
86 us-gaap: Life and health insurance benefits xbrli:monetaryItemType duration debit us-gaap:PolicyholderBenefitsAndClaimsIncurredNet
87 us-gaap: Insurance underwriting expenses xbrli:monetaryItemType duration debit us-gaap:ExpenseRelatedToDistributionOrServicingAndUnderwritingFees
88 us-gaap: Cost of sales and services xbrli:monetaryItemType duration debit us-gaap:CostOfGoodsAndServicesSold
89 us-gaap: Selling, general and administrative expenses xbrli:monetaryItemType duration debit us-gaap:SellingGeneralAndAdministrativeExpense
90 us-gaap: Cost of sales and operating expenses xbrli:monetaryItemType duration debit us-gaap:UtilitiesOperatingExpense
91 us-gaap: Interest expense xbrli:monetaryItemType duration debit us-gaap:InterestExpense
92 us-gaap: Other costs and expenses xbrli:monetaryItemType duration debit us-gaap:OtherFinancialServicesCosts
93 us-gaap: Total costs and expenses xbrli:monetaryItemType duration debit us-gaap:CostsAndExpenses
94 us-gaap: Earnings before income taxes and equity method earnings xbrli:monetaryItemType duration credit us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
95 us-gaap: Income tax expense xbrli:monetaryItemType duration debit us-gaap:IncomeTaxExpenseBenefit
96 us-gaap: Earnings from equity method investments xbrli:monetaryItemType duration credit us-gaap:IncomeLossFromEquityMethodInvestments
97 us-gaap: Net earnings xbrli:monetaryItemType duration credit us-gaap:ProfitLoss
98 us-gaap: Less: Earnings attributable to noncontrolling interests xbrli:monetaryItemType duration debit us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
99 us-gaap: Net earnings attributable to Berkshire Hathaway xbrli:monetaryItemType duration credit us-gaap:NetIncomeLoss
100 us-gaap: Average common shares outstanding [1] xbrli:sharesItemType duration us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
101 us-gaap: Net earnings per share attributable to Berkshire Hathaway shareholders [1] us-types:perShareItemType duration us-gaap:EarningsPerShareBasic
* Network: (000050 - Statement - Consolidated Statements of Cash Flows)
102 us-gaap: Consolidated Statements of Cash Flows xbrli:stringItemType duration us-gaap:StatementOfCashFlowsAbstract
103 us-gaap: Statement xbrli:stringItemType duration us-gaap:StatementTable
104 us-gaap: Statement Business Segment xbrli:stringItemType duration us-gaap:StatementBusinessSegmentsAxis
105 us-gaap: Segment us-types:domainItemType duration us-gaap:SegmentBusinessDomain
106 brka: Insurance and Other: us-types:domainItemType duration brka:SegmentInsuranceAndOtherMember
107 brka: Utilities and Energy: us-types:domainItemType duration brka:SegmentUtilitiesAndEnergyMember
108 brka: Finance and Financial Products: us-types:domainItemType duration brka:SegmentFinanceAndFinancialProductsMember
109 us-gaap: Statement items xbrli:stringItemType duration us-gaap:StatementLineItems
110 us-gaap: Cash and cash equivalents period increase decrease xbrli:stringItemType duration us-gaap:CashAndCashEquivalentsPeriodIncreaseDecreaseAbstract
111 us-gaap: Cash flows from operating activities: xbrli:stringItemType duration us-gaap:NetCashProvidedByUsedInOperatingActivitiesAbstract
112 us-gaap: Net earnings xbrli:monetaryItemType duration credit us-gaap:ProfitLoss
113 us-gaap: Adjustments to reconcile net earnings to operating cash flows: xbrli:stringItemType duration us-gaap:AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract
114 us-gaap: Investment (gains) losses and other-than-temporary impairment losses xbrli:monetaryItemType duration credit us-gaap:GainLossOnInvestments
115 us-gaap: Depreciation xbrli:monetaryItemType duration debit us-gaap:Depreciation
116 us-gaap: Other xbrli:monetaryItemType duration debit us-gaap:AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther
117 us-gaap: Changes in operating assets and liabilities before business acquisitions: xbrli:stringItemType duration us-gaap:IncreaseDecreaseInOperatingCapitalAbstract
118 us-gaap: Losses and loss adjustment expenses xbrli:monetaryItemType duration credit us-gaap:IncreaseDecreaseInLossAndLossAdjustmentExpenseReserve
119 brka: Deferred charges reinsurance assumed xbrli:monetaryItemType duration debit brka:IncreaseDecreaseInDeferredChargesReinsuranceAssumed
120 us-gaap: Unearned premiums xbrli:monetaryItemType duration debit us-gaap:IncreaseDecreaseInUnearnedPremiums
121 us-gaap: Receivables and originated loans xbrli:monetaryItemType duration credit us-gaap:IncreaseDecreaseInReceivables
122 brka: Derivative contract assets and liabilities xbrli:monetaryItemType duration credit brka:IncreaseDecreaseInDerivativeContractAssetsAndLiabilities
123 brka: Income taxes xbrli:monetaryItemType duration debit brka:IncreaseDecreaseInIncomeTaxes
124 us-gaap: Other assets and liabilities xbrli:monetaryItemType duration credit us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet
125 us-gaap: Net cash flows from operating activities xbrli:monetaryItemType duration us-gaap:NetCashProvidedByUsedInOperatingActivities
126 us-gaap: Cash flows from investing activities: xbrli:stringItemType duration us-gaap:NetCashProvidedByUsedInInvestingActivitiesAbstract
127 brka: Purchases of fixed maturity securities xbrli:monetaryItemType duration credit brka:PaymentsToAcquireMarketableSecuritiesFixedMaturities
128 brka: Purchases of equity securities xbrli:monetaryItemType duration credit brka:PaymentsToAcquireMarketableSecuritiesEquitySecurities
129 us-gaap: Purchases of other investments xbrli:monetaryItemType duration credit us-gaap:PaymentsToAcquireOtherInvestments
130 brka: Sales of fixed maturity securities xbrli:monetaryItemType duration debit brka:ProceedsFromSaleOfMarketableSecuritiesFixedMaturities
131 brka: Redemptions and maturities of fixed maturity securities xbrli:monetaryItemType duration debit brka:ProceedsFromRedemptionsAndMaturitiesOfMarketableSecuritiesFixedMaturities
132 brka: Sales of equity securities xbrli:monetaryItemType duration debit brka:ProceedsFromSaleOfMarketableSecuritiesEquitySecurities
133 us-gaap: Purchases of loans and finance receivables xbrli:monetaryItemType duration credit us-gaap:PaymentsToAcquireLoansReceivable
134 us-gaap: Principal collections on loans and finance receivables xbrli:monetaryItemType duration debit us-gaap:ProceedsFromCollectionOfLoansReceivable
135 us-gaap: Acquisitions of businesses xbrli:monetaryItemType duration credit us-gaap:PaymentsToAcquireBusinessesAndInterestInAffiliates
136 us-gaap: Purchases of property, plant and equipment xbrli:monetaryItemType duration credit us-gaap:PaymentsToAcquirePropertyPlantAndEquipment
137 us-gaap: Other investing activities xbrli:monetaryItemType duration credit us-gaap:PaymentsForProceedsFromOtherInvestingActivities
138 us-gaap: Net cash flows from investing activities xbrli:monetaryItemType duration debit us-gaap:NetCashProvidedByUsedInInvestingActivities
139 us-gaap: Cash flows from financing activities: xbrli:stringItemType duration us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract
140 us-gaap: Proceeds from borrowings xbrli:monetaryItemType duration debit us-gaap:ProceedsFromOtherDebt
141 us-gaap: Repayments of borrowings xbrli:monetaryItemType duration credit us-gaap:RepaymentsOfOtherDebt
142 us-gaap: Change in short term borrowings xbrli:monetaryItemType duration debit us-gaap:ProceedsFromRepaymentsOfShortTermDebt
143 brka: Acquisitions of noncontrolling interests and other xbrli:monetaryItemType duration credit brka:PaymentsToMinorityShareholdersAndProceedsFromPaymentsForOtherFinancingActivities
144 us-gaap: Net cash flows from financing activities xbrli:monetaryItemType duration debit us-gaap:NetCashProvidedByUsedInFinancingActivities
145 us-gaap: Effects of foreign currency exchange rate changes xbrli:monetaryItemType duration debit us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents
146 us-gaap: Increase (decrease) in cash and cash equivalents xbrli:monetaryItemType duration us-gaap:CashAndCashEquivalentsPeriodIncreaseDecrease
147 us-gaap: Cash and cash equivalents: xbrli:stringItemType duration us-gaap:CashAndCashEquivalentsAtCarryingValueAbstract
148 us-gaap: Cash and cash equivalents at beginning of year xbrli:monetaryItemType instant debit us-gaap:CashAndCashEquivalentsAtCarryingValue
149 us-gaap: Cash and cash equivalents at end of first nine months xbrli:monetaryItemType instant debit us-gaap:CashAndCashEquivalentsAtCarryingValue
* Network: (000100 - Disclosure - General)
150 brka: General [Abstract] xbrli:stringItemType duration brka:GeneralAbstract
151 us-gaap: Note 1. General us-types:textBlockItemType duration us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock
* Network: (000105 - Disclosure - Accounting pronouncements adopted in 2009)
152 brka: Accounting pronouncements adopted in 2009 [Abstract] xbrli:stringItemType duration brka:AccountingPronouncementsAdoptedIn2009Abstract
153 us-gaap: Note 2. Accounting pronouncements adopted in 2009 us-types:textBlockItemType duration us-gaap:ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock
* Network: (000110 - Disclosure - Accounting pronouncements to be adopted)
154 brka: Accounting pronouncements to be adopted [Abstract] xbrli:stringItemType duration brka:AccountingPronouncementsToBeAdoptedAbstract
155 brka: Note 3. Accounting pronouncements to be adopted us-types:textBlockItemType duration brka:AccountingPronouncementsToBeAdoptedTextBlock
* Network: (000120 - Disclosure - Business acquisitions)
156 brka: Business acquisitions [Abstract] xbrli:stringItemType duration brka:BusinessAcquisitionsAbstract
157 us-gaap: Note 4. Business acquisitions us-types:textBlockItemType duration us-gaap:BusinessCombinationDisclosureTextBlock
* Network: (000130 - Disclosure - Investments in fixed maturity securities)
158 brka: Investments in fixed maturity securities [Abstract] xbrli:stringItemType duration brka:InvestmentsInFixedMaturitySecuritiesAbstract
159 brka: Note 5. Investments in fixed maturity securities us-types:textBlockItemType duration brka:InvestmentsInMarketableSecuritiesFixedMaturitiesDisclosureTextBlock
* Network: (000140 - Disclosure - Investments in equity securities)
160 brka: Investments in equity securities [Abstract] xbrli:stringItemType duration brka:InvestmentsInEquitySecuritiesAbstract
161 brka: Note 6. Investments in equity securities us-types:textBlockItemType duration brka:InvestmentsInMarketableSecuritiesEquitySecuritiesDisclosureTextBlock
* Network: (000150 - Disclosure - Other Investments)
162 us-gaap: Other Investments [Abstract] xbrli:stringItemType duration us-gaap:OtherInvestmentsAbstract
163 brka: Note 7. Other Investments us-types:textBlockItemType duration brka:OtherInvestmentsDisclosureTextBlock
* Network: (000155 - Disclosure - Investment gains and losses)
164 brka: Investment gains/losses [Abstract] xbrli:stringItemType duration brka:InvestmentGainsLossesAbstract
165 us-gaap: Note 8. Investment gains/losses us-types:textBlockItemType duration us-gaap:GainLossOnInvestmentsTextBlock
* Network: (000160 - Disclosure - Derivative contracts of finance and financial products businesses)
166 brka: Derivative contracts of finance and financial products businesses [Abstract] xbrli:stringItemType duration brka:DerivativeContractsOfFinanceAndFinancialProductsBusinessesAbstract
167 us-gaap: Note 9. Derivative contracts of finance and financial products businesses us-types:textBlockItemType duration us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock
* Network: (000170 - Disclosure - Fair value measurements)
168 brka: Fair value measurements [Abstract] xbrli:stringItemType duration brka:FairValueMeasurementsAbstract
169 us-gaap: Note 10. Fair value measurements us-types:textBlockItemType duration us-gaap:FairValueDisclosuresTextBlock
* Network: (000180 - Disclosure - Receivables)
170 brka: Receivables [Abstract] xbrli:stringItemType duration brka:ReceivablesAbstract
171 us-gaap: Note 11. Receivables us-types:textBlockItemType duration us-gaap:LoansNotesTradeAndOtherReceivablesDisclosureTextBlock
* Network: (000190 - Disclosure - Property, plant and equipment)
172 us-gaap: Property, plant and equipment [Abstract] xbrli:stringItemType duration us-gaap:PropertyPlantAndEquipmentAbstract
173 us-gaap: Note 12. Property, plant and equipment us-types:textBlockItemType duration us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock
* Network: (000200 - Disclosure - Inventories)
174 us-gaap: Inventories [Abstract] xbrli:stringItemType duration us-gaap:InventoryNetAbstract
175 us-gaap: Note 13. Inventories us-types:textBlockItemType duration us-gaap:InventoryDisclosureTextBlock
* Network: (000210 - Disclosure - Income taxes)
176 brka: Income taxes [Abstract] xbrli:stringItemType duration brka:IncomeTaxesAbstract
177 us-gaap: Note 14. Income taxes us-types:textBlockItemType duration us-gaap:IncomeTaxDisclosureTextBlock
* Network: (000220 - Disclosure - Notes payable and other borrowings)
178 us-gaap: Notes payable and other borrowings [Abstract] xbrli:stringItemType duration us-gaap:DebtInstrumentsAbstract
179 us-gaap: Note 15. Notes payable and other borrowings us-types:textBlockItemType duration us-gaap:DebtDisclosureTextBlock
* Network: (000230 - Disclosure - Shareholders' equity)
180 us-gaap: Shareholders' equity [Abstract] xbrli:stringItemType duration us-gaap:StockholdersEquityNoteAbstract
181 us-gaap: Note 16. Shareholders' equity us-types:textBlockItemType duration us-gaap:StockholdersEquityNoteDisclosureTextBlock
* Network: (000240 - Disclosure - Business segment data)
182 us-gaap: Business segment data [Abstract] xbrli:stringItemType duration us-gaap:SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract
183 us-gaap: Note 17. Business segment data us-types:textBlockItemType duration us-gaap:SegmentReportingDisclosureTextBlock
* Network: (000250 - Disclosure - Contingencies)
184 us-gaap: Contingencies [Abstract] xbrli:stringItemType duration us-gaap:LossContingencyAbstract
185 us-gaap: Note 18. Contingencies us-types:textBlockItemType duration us-gaap:CommitmentsAndContingenciesDisclosureTextBlock
* Network: (000260 - Disclosure - Supplemental cash flow information)
186 us-gaap: Supplemental cash flow information [Abstract] xbrli:stringItemType duration us-gaap:SupplementalCashFlowInformationAbstract
187 us-gaap: Note 19. Supplemental cash flow information us-types:textBlockItemType duration us-gaap:CashFlowSupplementalDisclosuresTextBlock
* Network: (000270 - Disclosure - Subsequent event)
188 brka: Subsequent event [Abstract] xbrli:stringItemType duration brka:SubsequentEventAbstract
189 us-gaap: Note 20. Subsequent event us-types:textBlockItemType duration us-gaap:ScheduleOfSubsequentEventsTextBlock