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Berkshire Hathaway Inc – ‘10-K’ for 12/31/10 – ‘XML.R77’

On:  Monday, 2/28/11, at 10:20am ET   ·   For:  12/31/10   ·   Accession #:  1193125-11-48914   ·   File #:  1-14905

Previous ‘10-K’:  ‘10-K’ on 3/1/10 for 12/31/09   ·   Next:  ‘10-K’ on 2/27/12 for 12/31/11   ·   Latest:  ‘10-K’ on 2/26/24 for 12/31/23   ·   2 References:   

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  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 2/28/11  Berkshire Hathaway Inc            10-K       12/31/10  103:31M                                    Donnelley … Solutions/FA

Annual Report   —   Form 10-K   —   Sect. 13 / 15(d) – SEA’34
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-K        Annual Report                                       HTML   1.69M 
 3: EX-21       Subsidiaries List                                   HTML     65K 
 4: EX-23       Consent of Experts or Counsel                       HTML     28K 
 2: EX-12       Statement re: Computation of Ratios                 HTML     44K 
 5: EX-31.1     Certification -- §302 - SOA'02                      HTML     33K 
 6: EX-31.2     Certification -- §302 - SOA'02                      HTML     33K 
 7: EX-32.1     Certification -- §906 - SOA'02                      HTML     27K 
 8: EX-32.2     Certification -- §906 - SOA'02                      HTML     27K 
78: XML         IDEA XML File -- Definitions and References          XML    367K 
92: XML         IDEA XML File -- Filing Summary                      XML    355K 
87: XML.R1      Document and Entity Information                      XML    307K 
88: XML.R2      Consolidated Balance Sheets                          XML    758K 
48: XML.R3      Consolidated Statements of Earnings                  XML    855K 
56: XML.R4      Consolidated Statements of Earnings                  XML    260K 
                (Parenthetical)                                                  
76: XML.R5      Consolidated Statements of Cash Flows                XML    792K 
73: XML.R6      Consolidated Statements of Changes in                XML    474K 
                Shareholders' Equity                                             
98: XML.R7      Consolidated Statements of Comprehensive Income      XML    226K 
26: XML.R8      Significant accounting policies and practices        XML    119K 
72: XML.R9      Significant business acquisitions                    XML     89K 
22: XML.R10     Investments in fixed maturity securities             XML    185K 
21: XML.R11     Investments in equity securities                     XML    172K 
47: XML.R12     Other investments                                    XML    116K 
82: XML.R13     Investment gains and losses                          XML    100K 
49: XML.R14     Receivables                                          XML     85K 
52: XML.R15     Inventories                                          XML     68K 
67: XML.R16     Goodwill and other intangible assets                 XML    123K 
103: XML.R17     Property, plant and equipment                        XML    135K  
41: XML.R18     Derivative contracts                                 XML    143K 
15: XML.R19     Supplemental cash flow information                   XML     86K 
55: XML.R20     Unpaid losses and loss adjustment expenses           XML    129K 
81: XML.R21     Notes payable and other borrowings                   XML    162K 
33: XML.R22     Income taxes                                         XML    188K 
77: XML.R23     Dividend restrictions - Insurance subsidiaries       XML     52K 
53: XML.R24     Fair value measurements                              XML    282K 
97: XML.R25     Common stock                                         XML     82K 
84: XML.R26     Pension plans                                        XML    252K 
59: XML.R27     Contingencies and Commitments                        XML     86K 
68: XML.R28     Business segment data                                XML    504K 
20: XML.R29     Quarterly Data                                       XML    106K 
24: XML.R30     Condensed Financial Information                      XML    245K 
35: XML.R31     Significant Accounting Policies (Policies)           XML    267K 
43: XML.R32     Significant Business Acquisitions (Table)            XML     90K 
66: XML.R33     Investments in fixed maturity securities (Table)     XML    188K 
83: XML.R34     Investments in equity securities (Table)             XML    168K 
18: XML.R35     Other investments (Table)                            XML    110K 
27: XML.R36     Investment gains and losses (Table)                  XML     97K 
89: XML.R37     Receivables (Table)                                  XML     87K 
96: XML.R38     Inventories (Table)                                  XML     66K 
60: XML.R39     Goodwill and other intangible assets (Table)         XML    127K 
100: XML.R40     Property, plant and equipment (Table)                XML    173K  
28: XML.R41     Derivative contracts (Table)                         XML    142K 
102: XML.R42     Supplemental cash flow information (Table)           XML     84K  
37: XML.R43     Unpaid losses and loss adjustment expenses (Table)   XML    122K 
16: XML.R44     Notes payable and other borrowings (Table)           XML    235K 
36: XML.R45     Income taxes (Table)                                 XML    203K 
80: XML.R46     Fair value measurements (Table)                      XML    282K 
95: XML.R47     Common stock (Table)                                 XML     77K 
50: XML.R48     Pension plans (Table)                                XML    286K 
39: XML.R49     Business segment data (Table)                        XML    497K 
65: XML.R50     Quarterly data (Table)                               XML    104K 
19: XML.R51     Significant Accounting Policies (Detail)             XML    246K 
70: XML.R52     Significant Business Acquisitions (Detail)           XML    933K 
40: XML.R53     Investments in fixed maturity securities -           XML    603K 
                Investments in securities with fixed maturities                  
                (Detail)                                                         
25: XML.R54     Investments in fixed maturity securities -           XML    205K 
                Amortized cost and estimated fair value of                       
                securities with fixed maturities (Detail)                        
94: XML.R55     Investments in equity securities (Detail)            XML    770K 
91: XML.R56     Other investments (Detail)                           XML    449K 
46: XML.R57     Other Investments Narrative (Detail)                 XML   1.05M 
32: XML.R58     Investment gains and losses (Detail)                 XML    400K 
85: XML.R59     Receivables (Detail)                                 XML    767K 
23: XML.R60     Inventories (Detail)                                 XML    139K 
74: XML.R61     Goodwill and other intangible assets (Detail)        XML     88K 
71: XML.R62     Goodwill and other intangible assets - Intangible    XML    532K 
                assets (Detail)                                                  
90: XML.R63     Property, plant and equipment (Detail)               XML   1.07M 
86: XML.R64     Derivative contracts (Detail)                        XML    601K 
99: XML.R65     Derivative contracts - gains and losses (Detail)     XML    366K 
30: XML.R66     Supplemental cash flow information (Detail)          XML    370K 
45: XML.R67     Unpaid losses and loss adjustment expenses           XML    350K 
                (Detail)                                                         
63: XML.R68     Notes payable and other borrowings (Detail)          XML    625K 
54: XML.R69     Notes payable and other borrowings - Narrative       XML   1.05M 
                (Detail)                                                         
64: XML.R70     Income taxes (Detail)                                XML    547K 
101: XML.R71     Dividend restrictions - Insurance subsidiaries       XML     99K  
                (Detail)                                                         
31: XML.R72     Fair value measurements - Financial Instruments      XML    774K 
                (Detail)                                                         
38: XML.R73     Fair value measurements - Financial assets and       XML   1.28M 
                liabilities measured and carried at fair value on                
                a recurring basis (Detail)                                       
34: XML.R74     Fair value measurements - Significant unobservable   XML    425K 
                inputs (Detail)                                                  
61: XML.R75     Common stock (Detail)                                XML    290K 
69: XML.R76     Common stock - roll-forward (Detail)                 XML    251K 
58: XML.R77     Pension plans (Detail)                               XML    728K 
51: XML.R78     Pension plans - fair value (Details)                 XML   1.24M 
29: XML.R79     Contingencies and Commitments (Detail)               XML    695K 
17: XML.R80     Business segment data (Detail)                       XML   5.75M 
62: XML.R81     Quarterly data (Detail)                              XML    391K 
44: XML.R82     Condensed Financial Information - Balance Sheets     XML    386K 
                (Detail)                                                         
57: XML.R83     Condensed Financial Information - Statements of      XML    708K 
                Earnings (Detail)                                                
79: XML.R84     Condensed Financial Information - Statements of      XML    571K 
                Cash Flows (Detail)                                              
75: XML.R85     Notes to Condensed Financial Information (Detail)    XML   1.18M 
93: EXCEL       IDEA Workbook of Financial Reports (.xls)            XLS   5.94M 
 9: EX-101.INS  XBRL Instance -- brka-20101231                       XML   6.08M 
11: EX-101.CAL  XBRL Calculations -- brka-20101231_cal               XML    276K 
12: EX-101.DEF  XBRL Definitions -- brka-20101231_def                XML   1.42M 
13: EX-101.LAB  XBRL Labels -- brka-20101231_lab                     XML   2.17M 
14: EX-101.PRE  XBRL Presentations -- brka-20101231_pre              XML   1.59M 
10: EX-101.SCH  XBRL Schema -- brka-20101231                         XSD    393K 
42: ZIP         XBRL Zipped Folder -- 0001193125-11-048914-xbrl      Zip    385K

‘XML.R77’   —   Pension plans (Detail)

This Financial Report is an XBRL XML File.

                                                                                                                                                                                
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<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 106 -Paragraph 518 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 264 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph a, h </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Interest cost </Label>
</Row>
<Row>
<Id> 5 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> credit </BalanceType>
<PeriodType> duration </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> true </IsReverseSign>
<PreferredLabelRole> negated </PreferredLabelRole>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> -528000000 </NumericAmount>
<RoundedNumericAmount> -528000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> -417000000 </NumericAmount>
<RoundedNumericAmount> -417000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> -463000000 </NumericAmount>
<RoundedNumericAmount> -463000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 106 -Paragraph 518 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 264 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph h </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Expected return on plan assets </Label>
</Row>
<Row>
<Id> 6 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> brka_DefinedBenefitPlanOtherExpense </ElementName>
<ElementPrefix> brka </ElementPrefix>
<IsBaseElement> false </IsBaseElement>
<BalanceType> debit </BalanceType>
<PeriodType> duration </PeriodType>
<ShortDefinition> Other expense associated with a defined benefit pension plan which are not otherwise defined in the taxonomy or which are not... </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole> terselabel </PreferredLabelRole>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 69000000 </NumericAmount>
<RoundedNumericAmount> 69000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 35000000 </NumericAmount>
<RoundedNumericAmount> 35000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 20000000 </NumericAmount>
<RoundedNumericAmount> 20000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> Other expense associated with a defined benefit pension plan which are not otherwise defined in the taxonomy or which are not separately disclosed. </ElementDefenition>
<ElementReferences> No authoritative reference available. </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Other </Label>
</Row>
<Row>
<Id> 7 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> debit </BalanceType>
<PeriodType> duration </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole> totallabel </PreferredLabelRole>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 249000000 </NumericAmount>
<RoundedNumericAmount> 249000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 235000000 </NumericAmount>
<RoundedNumericAmount> 235000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 185000000 </NumericAmount>
<RoundedNumericAmount> 185000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain or loss, prior service cost or credit, transition asset or obligation, and gain or loss due to settlements or curtailments). </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph h </ElementReferences>
<IsTotalLabel> true </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Net pension expense </Label>
</Row>
<Row>
<Id> 8 </Id>
<IsAbstractGroupTitle> true </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> brka_AccumulatedBenefitObligationAbstract </ElementName>
<ElementPrefix> brka </ElementPrefix>
<IsBaseElement> false </IsBaseElement>
<BalanceType> na </BalanceType>
<PeriodType> duration </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole/>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Other </Unit>
<ElementDataType> xbrli:stringItemType </ElementDataType>
<SimpleDataType> string </SimpleDataType>
<ElementDefenition> No definition available. </ElementDefenition>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Accumulated benefit obligation [Abstract] </Label>
</Row>
<Row>
<Id> 9 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> credit </BalanceType>
<PeriodType> instant </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole/>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 9954000000 </NumericAmount>
<RoundedNumericAmount> 9954000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 7379000000 </NumericAmount>
<RoundedNumericAmount> 7379000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph e </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Accumulated benefit obligation </Label>
</Row>
<Row>
<Id> 10 </Id>
<IsAbstractGroupTitle> true </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> brka_ProjectedBenefitObligationAbstract </ElementName>
<ElementPrefix> brka </ElementPrefix>
<IsBaseElement> false </IsBaseElement>
<BalanceType> na </BalanceType>
<PeriodType> duration </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole> terselabel </PreferredLabelRole>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Other </Unit>
<ElementDataType> xbrli:stringItemType </ElementDataType>
<SimpleDataType> string </SimpleDataType>
<ElementDefenition> No definition available. </ElementDefenition>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Projected benefit obligation: </Label>
</Row>
<Row>
<Id> 11 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanBenefitObligation </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> credit </BalanceType>
<PeriodType> instant </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> true </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole> periodstartlabel </PreferredLabelRole>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 8136000000 </NumericAmount>
<RoundedNumericAmount> 8136000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 7587000000 </NumericAmount>
<RoundedNumericAmount> 7587000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> 1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. The projected benefit obligation is measured using assumptions as to future compensation levels if the pension benefit formula is based on those future compensation levels (pay-related, final-pay, final-average-pay, or career-average-pay plans). For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date. Prior to an employee's full eligibility date, the accumulated postretirement benefit obligation as of a particular date for an employee is the portion of the expected postretirement benefit obligation attributed to that employee's service rendered to that date; on and after the full eligibility date, the accumulated and expected postretirement benefit obligations for an employee are the same. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph a Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 6 -Subparagraph a Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph E1 </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Projected benefit obligation, beginning of year </Label>
</Row>
<Row>
<Id> 12 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanServiceCost </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> debit </BalanceType>
<PeriodType> duration </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole> terselabel </PreferredLabelRole>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 165000000 </NumericAmount>
<RoundedNumericAmount> 165000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 162000000 </NumericAmount>
<RoundedNumericAmount> 162000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 176000000 </NumericAmount>
<RoundedNumericAmount> 176000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 106 -Paragraph 518 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 264 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph a, h </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Service cost </Label>
</Row>
<Row>
<Id> 13 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanInterestCost </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> debit </BalanceType>
<PeriodType> duration </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole> terselabel </PreferredLabelRole>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 543000000 </NumericAmount>
<RoundedNumericAmount> 543000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 455000000 </NumericAmount>
<RoundedNumericAmount> 455000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 452000000 </NumericAmount>
<RoundedNumericAmount> 452000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 106 -Paragraph 518 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 264 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph a, h </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Interest cost </Label>
</Row>
<Row>
<Id> 14 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanBenefitsPaid </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> debit </BalanceType>
<PeriodType> duration </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole/>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> -528000000 </NumericAmount>
<RoundedNumericAmount> -528000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> -408000000 </NumericAmount>
<RoundedNumericAmount> -408000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph a, b Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 106 -Paragraph 518 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 264 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS106-2 -Paragraph 22 </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Benefits paid </Label>
</Row>
<Row>
<Id> 15 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanActuarialNetGainsLosses </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> debit </BalanceType>
<PeriodType> duration </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole/>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 296000000 </NumericAmount>
<RoundedNumericAmount> 296000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 340000000 </NumericAmount>
<RoundedNumericAmount> 340000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> The net increase or decrease of changes in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 106 -Paragraph 518 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 264 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph a </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Actuarial (gain) or loss and other </Label>
</Row>
<Row>
<Id> 16 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanBenefitObligation </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> credit </BalanceType>
<PeriodType> instant </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> true </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole> periodendlabel </PreferredLabelRole>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 10598000000 </NumericAmount>
<RoundedNumericAmount> 10598000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 8136000000 </NumericAmount>
<RoundedNumericAmount> 8136000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 7587000000 </NumericAmount>
<RoundedNumericAmount> 7587000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> 1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. The projected benefit obligation is measured using assumptions as to future compensation levels if the pension benefit formula is based on those future compensation levels (pay-related, final-pay, final-average-pay, or career-average-pay plans). For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date. Prior to an employee's full eligibility date, the accumulated postretirement benefit obligation as of a particular date for an employee is the portion of the expected postretirement benefit obligation attributed to that employee's service rendered to that date; on and after the full eligibility date, the accumulated and expected postretirement benefit obligations for an employee are the same. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph a Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 6 -Subparagraph a Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph E1 </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Projected benefit obligation, end of year </Label>
</Row>
<Row>
<Id> 17 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> brka_DefinedBenefitPlanBenefitObligationUnfunded </ElementName>
<ElementPrefix> brka </ElementPrefix>
<IsBaseElement> false </IsBaseElement>
<BalanceType> credit </BalanceType>
<PeriodType> instant </PeriodType>
<ShortDefinition> The projected benefit obligation for unfunded plans (non-qualified U.S. plans and non-U.S. plans). </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole> terselabel </PreferredLabelRole>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 797000000 </NumericAmount>
<RoundedNumericAmount> 797000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> The projected benefit obligation for unfunded plans (non-qualified U.S. plans and non-U.S. plans). </ElementDefenition>
<ElementReferences> No authoritative reference available. </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Unfunded projected benefit obligations </Label>
</Row>
<Row>
<Id> 18 </Id>
<IsAbstractGroupTitle> true </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> na </BalanceType>
<PeriodType> duration </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole/>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Other </Unit>
<ElementDataType> xbrli:stringItemType </ElementDataType>
<SimpleDataType> string </SimpleDataType>
<ElementDefenition> A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. </ElementDefenition>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Reconciliation of changes in plan assets </Label>
</Row>
<Row>
<Id> 19 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanFairValueOfPlanAssets </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> debit </BalanceType>
<PeriodType> instant </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> true </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole> periodstartlabel </PreferredLabelRole>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 5926000000 </NumericAmount>
<RoundedNumericAmount> 5926000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 5322000000 </NumericAmount>
<RoundedNumericAmount> 5322000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph b Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(iv)(b)(i) Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 49 </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Plan assets at beginning of year </Label>
</Row>
<Row>
<Id> 20 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanContributionsByEmployer </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> debit </BalanceType>
<PeriodType> duration </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole/>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 776000000 </NumericAmount>
<RoundedNumericAmount> 776000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 224000000 </NumericAmount>
<RoundedNumericAmount> 224000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> The amount of contributions made by the employer. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph b </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Employer contributions </Label>
</Row>
<Row>
<Id> 21 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanBenefitsPaid </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> debit </BalanceType>
<PeriodType> duration </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole/>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> -528000000 </NumericAmount>
<RoundedNumericAmount> -528000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> -408000000 </NumericAmount>
<RoundedNumericAmount> -408000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph a, b Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 106 -Paragraph 518 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 264 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS106-2 -Paragraph 22 </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Benefits paid </Label>
</Row>
<Row>
<Id> 22 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> debit </BalanceType>
<PeriodType> duration </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole/>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 795000000 </NumericAmount>
<RoundedNumericAmount> 795000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 749000000 </NumericAmount>
<RoundedNumericAmount> 749000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(iv)(b)(i) Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 106 -Paragraph 518 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 264 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph b </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Actual return on plan assets </Label>
</Row>
<Row>
<Id> 23 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> brka_DefinedBenefitPlanExpensesAndOther </ElementName>
<ElementPrefix> brka </ElementPrefix>
<IsBaseElement> false </IsBaseElement>
<BalanceType> debit </BalanceType>
<PeriodType> duration </PeriodType>
<ShortDefinition> The amount of increase or decrease in the plan assets attributed to expenses and other items which are not otherwise defined... </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole> terselabel </PreferredLabelRole>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> -65000000 </NumericAmount>
<RoundedNumericAmount> -65000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 39000000 </NumericAmount>
<RoundedNumericAmount> 39000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> The amount of increase or decrease in the plan assets attributed to expenses and other items which are not otherwise defined in the taxonomy or which are not separately disclosed. </ElementDefenition>
<ElementReferences> No authoritative reference available. </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Other and expenses </Label>
</Row>
<Row>
<Id> 24 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanFairValueOfPlanAssets </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> debit </BalanceType>
<PeriodType> instant </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> true </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole> periodendlabel </PreferredLabelRole>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 8246000000 </NumericAmount>
<RoundedNumericAmount> 8246000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 5926000000 </NumericAmount>
<RoundedNumericAmount> 5926000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 5322000000 </NumericAmount>
<RoundedNumericAmount> 5322000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
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<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph b Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(iv)(b)(i) Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 49 </ElementReferences>
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<ShortDefinition> No definition available. </ShortDefinition>
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<ShortDefinition> No definition available. </ShortDefinition>
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<IsNumeric> true </IsNumeric>
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<Unit> Monetary </Unit>
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<ElementDefenition> Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph b Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(iv)(b)(i) Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 49 </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Fair value for pension assets </Label>
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<PeriodType> duration </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
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<IsCalendarTitle> false </IsCalendarTitle>
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<hasScenarios> false </hasScenarios>
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<SimpleDataType> string </SimpleDataType>
<ElementDefenition> No definition available. </ElementDefenition>
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<IsEPS> false </IsEPS>
<Label> Estimated future benefit payments </Label>
</Row>
<Row>
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<ElementPrefix> us-gaap </ElementPrefix>
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<PeriodType> instant </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
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<IsSegmentTitle> false </IsSegmentTitle>
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<hasScenarios> false </hasScenarios>
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<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> The amount of the benefits expected to be paid in Year 1. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph f </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
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<Label> 2011 </Label>
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<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> debit </BalanceType>
<PeriodType> instant </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
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<IsSegmentTitle> false </IsSegmentTitle>
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<FootnoteIndexer/>
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<NonNumericTextHeader/>
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<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> The amount of the benefits expected to be paid in Year 2. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph f </ElementReferences>
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<Label> 2012 </Label>
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<BalanceType> debit </BalanceType>
<PeriodType> instant </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
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<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph f </ElementReferences>
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<Label> 2013 </Label>
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<ElementDefenition> The amount of the benefits expected to be paid in Year 4. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph f </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
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<Row>
<Id> 32 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearFive </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> debit </BalanceType>
<PeriodType> instant </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole/>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 650000000 </NumericAmount>
<RoundedNumericAmount> 650000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> The amount of the benefits expected to be paid in Year 5. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph f </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> 2015 </Label>
</Row>
<Row>
<Id> 33 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsInFiveFiscalYearsThereafter </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> debit </BalanceType>
<PeriodType> instant </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole/>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 3431000000 </NumericAmount>
<RoundedNumericAmount> 3431000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> The amount of the aggregate benefits expected to be paid in the five fiscal years thereafter (the aggregate amount of benefits expected to be paid in years 6 through 10 after the date of the latest statement of financial position). </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph f </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> 2016 - 2020 </Label>
</Row>
<Row>
<Id> 34 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> debit </BalanceType>
<PeriodType> instant </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole/>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 340000000 </NumericAmount>
<RoundedNumericAmount> 340000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> The employer's best estimate, as soon as it can be reasonably determined, of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph g </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Expected contribution to pension plans </Label>
</Row>
<Row>
<Id> 35 </Id>
<IsAbstractGroupTitle> true </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> na </BalanceType>
<PeriodType> duration </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole/>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Other </Unit>
<ElementDataType> xbrli:stringItemType </ElementDataType>
<SimpleDataType> string </SimpleDataType>
<ElementDefenition> No definition available. </ElementDefenition>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Amounts recognized in the Consolidated Balance Sheets </Label>
</Row>
<Row>
<Id> 36 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> credit </BalanceType>
<PeriodType> instant </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> true </IsReverseSign>
<PreferredLabelRole> negated </PreferredLabelRole>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 2425000000 </NumericAmount>
<RoundedNumericAmount> 2425000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 2288000000 </NumericAmount>
<RoundedNumericAmount> 2288000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> This represents the entire liability recognized in the balance sheet that is associated with the defined benefit plans. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph c Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 6 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 3 </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Other liabilities </Label>
</Row>
<Row>
<Id> 37 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsCurrentAndNoncurrent </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> debit </BalanceType>
<PeriodType> instant </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole> terselabel </PreferredLabelRole>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> -73000000 </NumericAmount>
<RoundedNumericAmount> -73000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> -78000000 </NumericAmount>
<RoundedNumericAmount> -78000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> This represents the entire assets recognized in the balance sheet that are associated with the defined benefit plans. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph c </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Other assets </Label>
</Row>
<Row>
<Id> 38 </Id>
<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheet </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> debit </BalanceType>
<PeriodType> instant </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
<IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow>
<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole> totallabel </PreferredLabelRole>
<FootnoteIndexer/>
<Cells>
<Cell>
<Id> 1 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 2352000000 </NumericAmount>
<RoundedNumericAmount> 2352000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 2 </Id>
<IsNumeric> true </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 2210000000 </NumericAmount>
<RoundedNumericAmount> 2210000000 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
<Cell>
<Id> 3 </Id>
<IsNumeric> false </IsNumeric>
<IsRatio> false </IsRatio>
<DisplayZeroAsNone> false </DisplayZeroAsNone>
<NumericAmount> 0 </NumericAmount>
<RoundedNumericAmount> 0 </RoundedNumericAmount>
<NonNumbericText/>
<NonNumericTextHeader/>
<FootnoteIndexer/>
<CurrencyCode/>
<CurrencySymbol/>
<IsIndependantCurrency> false </IsIndependantCurrency>
<ShowCurrencySymbol> false </ShowCurrencySymbol>
<DisplayDateInUSFormat> false </DisplayDateInUSFormat>
<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> The aggregate net amount recognized in the balance sheet associated with the defined benefit plan(s). Will normally be the same as the Defined Benefit Plan, Funded Status of Plan, Total. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph c </ElementReferences>
<IsTotalLabel> true </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Defined Benefit Plan, Amounts Recognized in Balance Sheet </Label>
</Row>
<Row>
<Id> 39 </Id>
<IsAbstractGroupTitle> true </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeAbstract </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> na </BalanceType>
<PeriodType> duration </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
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<Id> 3 </Id>
<IsNumeric> true </IsNumeric>
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<DisplayZeroAsNone> false </DisplayZeroAsNone>
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</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
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<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 11 </ElementReferences>
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<Label> Expense recognized for defined contribution plans </Label>
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<Row>
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<Level> 0 </Level>
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<ElementPrefix> us-gaap </ElementPrefix>
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<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
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<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
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</Cell>
<Cell>
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<IsNumeric> true </IsNumeric>
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<DisplayZeroAsNone> false </DisplayZeroAsNone>
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<NonNumericTextHeader/>
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<CurrencyCode/>
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<hasSegments> false </hasSegments>
<hasScenarios> false </hasScenarios>
</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> Amount of contributions made to multiemployer plans for each period for which a statement of income is presented. An employer may disclose total contributions to multiemployer plans without disaggregating the amounts attributable to pension plans and other postretirement benefit plans. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 12 </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
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<Row>
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<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
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<ElementName/>
<ElementPrefix> na </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> na </BalanceType>
<PeriodType> na </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> true </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
<IsTuple> false </IsTuple>
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<IsEquityAdjustmentRow> false </IsEquityAdjustmentRow>
<IsBeginningBalance> false </IsBeginningBalance>
<IsEndingBalance> false </IsEndingBalance>
<IsReverseSign> false </IsReverseSign>
<PreferredLabelRole> http://www.berkshirehathaway.com/2010-12-31/role/compensationrelatedcostsretirementbenefitsdetail </PreferredLabelRole>
<FootnoteIndexer/>
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<Cell>
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<IsNumeric> false </IsNumeric>
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<hasScenarios> false </hasScenarios>
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<NonNumericTextHeader/>
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<NonNumericTextHeader/>
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<Columns>
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<IsAbstractGroupTitle> false </IsAbstractGroupTitle>
<LabelColumn> false </LabelColumn>
<CurrencyCode> USD </CurrencyCode>
<FootnoteIndexer/>
<hasSegments> true </hasSegments>
<hasScenarios> false </hasScenarios>
<MCU>
<KeyName> {us-gaap_SegmentReportingInformationBySegmentAxis} : Burlington Northern Santa Fe Corporation [Member] 1/1/2010 - 12/31/2010 USD ($) </KeyName>
<CurrencySymbol> $ </CurrencySymbol>
<contextRef>
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<EntitySchema> http://www.sec.gov/CIK </EntitySchema>
<EntityValue> 0001067983 </EntityValue>
<PeriodDisplayName/>
<PeriodType> duration </PeriodType>
<PeriodStartDate> 2010-01-01T00:00:00 </PeriodStartDate>
<PeriodEndDate> 2010-12-31T00:00:00 </PeriodEndDate>
<Segments>
<anyType xsi:type="Segment">
<IsDefaultForEntity> false </IsDefaultForEntity>
<Name/>
<IsFromEntityGroup> false </IsFromEntityGroup>
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<ValueType> us-gaap_SegmentReportingInformationBySegmentAxis </ValueType>
<Namespace> xbrldi </Namespace>
<Schema> http://xbrl.org/2006/xbrldi </Schema>
<DimensionInfo>
<Id> brka_BurlingtonNorthernSantaFeCorporationMember </Id>
<dimensionId> us-gaap_SegmentReportingInformationBySegmentAxis </dimensionId>
<type> explicitMember </type>
</DimensionInfo>
</anyType>
</Segments>
<Scenarios/>
</contextRef>
<UPS>
<UnitProperty>
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<UnitType> Standard </UnitType>
<StandardMeasure>
<MeasureSchema> http://www.xbrl.org/2003/iso4217 </MeasureSchema>
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<MeasureNamespace> iso4217 </MeasureNamespace>
</StandardMeasure>
<Scale> 0 </Scale>
</UnitProperty>
</UPS>
<CurrencyCode> USD </CurrencyCode>
<OriginalCurrencyCode> USD </OriginalCurrencyCode>
</MCU>
<CurrencySymbol> $ </CurrencySymbol>
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<Label Id="2" Label="1/1/2010 - 12/31/2010"/>
</Labels>
</Columns>
</OriginalInstanceReportColumns>
<Unit> Other </Unit>
<ElementDataType/>
<SimpleDataType> na </SimpleDataType>
<ElementDefenition> No definition available. </ElementDefenition>
<ElementReferences> No authoritative reference available. </ElementReferences>
<IsTotalLabel> false </IsTotalLabel>
<IsEPS> false </IsEPS>
<Label> Burlington Northern Santa Fe Corporation [Member] </Label>
</Row>
<Row>
<Id> 58 </Id>
<IsAbstractGroupTitle> true </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> brka_ProjectedBenefitObligationAbstract </ElementName>
<ElementPrefix> brka </ElementPrefix>
<IsBaseElement> false </IsBaseElement>
<BalanceType> na </BalanceType>
<PeriodType> duration </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
<IsReportTitle> false </IsReportTitle>
<IsSegmentTitle> false </IsSegmentTitle>
<IsSubReportEnd> false </IsSubReportEnd>
<IsCalendarTitle> false </IsCalendarTitle>
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</Cell>
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<ElementDataType> xbrli:stringItemType </ElementDataType>
<SimpleDataType> string </SimpleDataType>
<ElementDefenition> No definition available. </ElementDefenition>
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<Label> Projected benefit obligation: </Label>
</Row>
<Row>
<Id> 59 </Id>
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<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanBusinessCombinationsAndAcquisitionsBenefitObligation </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> credit </BalanceType>
<PeriodType> duration </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
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<Cell>
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</Cell>
</Cells>
<OriginalInstanceReportColumns/>
<Unit> Monetary </Unit>
<ElementDataType> xbrli:monetaryItemType </ElementDataType>
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<ElementDefenition> The amount of increase in the benefit obligation attributed to business combinations. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph a </ElementReferences>
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<Label> Business acquisitions </Label>
</Row>
<Row>
<Id> 60 </Id>
<IsAbstractGroupTitle> true </IsAbstractGroupTitle>
<Level> 0 </Level>
<ElementName> us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
<IsBaseElement> true </IsBaseElement>
<BalanceType> na </BalanceType>
<PeriodType> duration </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
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<Label> Reconciliation of changes in plan assets </Label>
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<Row>
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<ElementName> us-gaap_DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets </ElementName>
<ElementPrefix> us-gaap </ElementPrefix>
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<BalanceType> debit </BalanceType>
<PeriodType> duration </PeriodType>
<ShortDefinition> No definition available. </ShortDefinition>
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<Cell>
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<Cell>
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</Cell>
</Cells>
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<SimpleDataType> monetary </SimpleDataType>
<ElementDefenition> The amount of increase in the plan assets attributed to a business combination. </ElementDefenition>
<ElementReferences> Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph b Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(iv)(b)(i) </ElementReferences>
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<Label> Business acquisitions </Label>
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</Rows>
<Footnotes/>
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<ReportName> Pension plans (Detail) (USD $) </ReportName>
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<SharesRoundingLevel> UnKnown </SharesRoundingLevel>
<PerShareRoundingLevel> UnKnown </PerShareRoundingLevel>
<ExchangeRateRoundingLevel> UnKnown </ExchangeRateRoundingLevel>
<HasCustomUnits> true </HasCustomUnits>
<SharesShouldBeRounded> true </SharesShouldBeRounded>
</InstanceReport>

2 Subsequent Filings that Reference this Filing

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 5/10/11  SEC                               UPLOAD10/16/17    1:45K  Berkshire Hathaway Inc.
 5/10/11  SEC                               UPLOAD10/16/17    1:55K  Berkshire Hathaway Inc.
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Filing Submission 0001193125-11-048914   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)
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