10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2014

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                     to 

Commission file number 001-14905

BERKSHIRE HATHAWAY INC.

(Exact name of registrant as specified in its charter)

Delaware	47-0813844
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification Number)

3555 Farnam Street, Omaha, Nebraska 68131

(Address of principal executive office)

(Zip Code)

(402) 346-1400

(Registrant’s telephone number, including area code)

(Former name, former address and former fiscal year, if changed since last report)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	x	Accelerated filer	¨
Non-accelerated filer	¨	Smaller reporting company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).    Yes  ¨    No  x

Number of shares of common stock outstanding as of April 24, 2014:

Class A —	856,453
Class B —	1,181,859,931

BERKSHIRE HATHAWAY INC.

		Page No.
Part I – Financial Information
Item 1.    Financial Statements
	Consolidated Balance Sheets— March 31, 2014 and December 31, 2013		2
	Consolidated Statements of Earnings— First Quarter 2014 and 2013		3
	Consolidated Statements of Comprehensive Income— First Quarter 2014 and 2013		4
	Consolidated Statements of Changes in Shareholders’ Equity— First Quarter 2014 and 2013		4
	Consolidated Statements of Cash Flows— First Quarter 2014 and 2013		5
	Notes to Consolidated Financial Statements		6-23
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		24-38
Item 3.	Quantitative and Qualitative Disclosures About Market Risk		39
Item 4.	Controls and Procedures		39
Part II – Other Information
Item 1.	Legal Proceedings		40
Item 1A.	Risk Factors		40
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds and Issuer Repurchases of Equity Securities		40
Item 3.	Defaults Upon Senior Securities		40
Item 4.	Mine Safety Disclosures		40
Item 5.	Other Information		40
Item 6.	Exhibits		40
Signature			41

1

Part I Financial Information

Item 1. Financial Statements

BERKSHIRE HATHAWAY INC.

and Subsidiaries

CONSOLIDATED BALANCE SHEETS

(dollars in millions)

	March 31, 2014		December 31, 2013
	(Unaudited)
ASSETS
Insurance and Other:
Cash and cash equivalents	$	42,193	$	42,433
Investments:
Fixed maturity securities		29,101		28,785
Equity securities		116,160		115,464
Other		13,259		12,334
Investments in H.J. Heinz Holding Corporation		12,087		12,111
Receivables		22,717		20,280
Inventories		10,245		9,860
Property, plant and equipment		13,798		13,623
Goodwill		34,237		33,067
Other		20,518		19,113
		314,315		307,070
Railroad, Utilities and Energy:
Cash and cash equivalents		3,847		3,400
Property, plant and equipment		103,508		102,482
Goodwill		22,685		22,603
Other		16,904		16,149
		146,944		144,634
Finance and Financial Products:
Cash and cash equivalents		2,908		2,353
Investments in equity and fixed maturity securities		1,392		1,506
Other investments		5,884		5,617
Loans and finance receivables		12,464		12,826
Property, plant and equipment and assets held for lease		7,774		7,700
Goodwill		1,342		1,341
Other		1,921		1,884
		33,685		33,227
	$	494,944	$	484,931
LIABILITIES AND SHAREHOLDERS’ EQUITY
Insurance and Other:
Losses and loss adjustment expenses	$	65,430	$	64,866
Unearned premiums		12,271		10,770
Life, annuity and health insurance benefits		11,958		11,681
Accounts payable, accruals and other liabilities		20,849		21,979
Notes payable and other borrowings		12,448		12,440
		122,956		121,736
Railroad, Utilities and Energy:
Accounts payable, accruals and other liabilities		14,467		14,557
Notes payable and other borrowings		47,751		46,655
		62,218		61,212
Finance and Financial Products:
Accounts payable, accruals and other liabilities		1,361		1,299
Derivative contract liabilities		5,095		5,331
Notes payable and other borrowings		13,024		13,129
		19,480		19,759
Income taxes, principally deferred		60,001		57,739
Total liabilities		264,655		260,446
Shareholders’ equity:
Common stock		8		8
Capital in excess of par value		35,465		35,472
Accumulated other comprehensive income		45,049		44,025
Retained earnings		148,453		143,748
Treasury stock, at cost		(1,363)		(1,363)
Berkshire Hathaway shareholders’ equity		227,612		221,890
Noncontrolling interests		2,677		2,595
Total shareholders’ equity		230,289		224,485
	$	494,944	$	484,931

See accompanying Notes to Consolidated Financial Statements

2

BERKSHIRE HATHAWAY INC.

and Subsidiaries

CONSOLIDATED STATEMENTS OF EARNINGS

(dollars in millions except per share amounts)

	First Quarter
	2014		2013
	(Unaudited)
Revenues:
Insurance and Other:
Insurance premiums earned	$	9,416	$	9,377
Sales and service revenues		22,328		21,996
Interest, dividend and other investment income		1,155		1,010
Investment gains/losses		1,059		434
		33,958		32,817
Railroad, Utilities and Energy:
Revenues		9,753		8,400
Finance and Financial Products:
Sales and service revenues		1,096		1,031
Interest, dividend and other investment income		338		342
Investment gains/losses		72		71
Derivative gains/losses		236		1,206
		1,742		2,650
		45,453		43,867
Costs and expenses:
Insurance and Other:
Insurance losses and loss adjustment expenses		5,590		5,144
Life, annuity and health insurance benefits		1,210		1,261
Insurance underwriting expenses		1,901		1,583
Cost of sales and services		18,137		18,019
Selling, general and administrative expenses		2,888		2,814
Interest expense		98		93
		29,824		28,914
Railroad, Utilities and Energy:
Cost of sales and operating expenses		7,381		6,111
Interest expense		565		447
		7,946		6,558
Finance and Financial Products:
Cost of sales and services		589		558
Selling, general and administrative expenses		377		396
Interest expense		119		146
		1,085		1,100
		38,855		36,572
Earnings before income taxes		6,598		7,295
Income tax expense		1,825		2,278
Net earnings		4,773		5,017
Less: Earnings attributable to noncontrolling interests		68		125
Net earnings attributable to Berkshire Hathaway	$	4,705	$	4,892
Average common shares outstanding *		1,644,059		1,643,181
Net earnings per share attributable to Berkshire Hathaway shareholders *	$	2,862	$	2,977

* Average shares outstanding include average Class A common shares and average Class B common shares determined on an equivalent Class A common stock basis. Net earnings per common share attributable to Berkshire Hathaway shown above represents net earnings per equivalent Class A common share. Net earnings per Class B common share is equal to one-fifteen-hundredth (1/1,500) of such amount.

See accompanying Notes to Consolidated Financial Statements

3

BERKSHIRE HATHAWAY INC.

and Subsidiaries

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(dollars in millions)

	First Quarter
	2014			2013
	(Unaudited)
Net earnings	$	4,773		$	5,017
Other comprehensive income:
Net change in unrealized appreciation of investments		2,591			9,641
Applicable income taxes		(898	)		(3,326	)
Reclassification of investment appreciation in net earnings		(1,041	)		(504	)
Applicable income taxes		364			176
Foreign currency translation		26			(650	)
Applicable income taxes		7			51
Prior service cost and actuarial gains/losses of defined benefit pension plans		7			87
Applicable income taxes		—			(23	)
Other, net		(4	)		16
Other comprehensive income, net		1,052			5,468
Comprehensive income		5,825			10,485
Comprehensive income attributable to noncontrolling interests		96			101
Comprehensive income attributable to Berkshire Hathaway shareholders	$	5,729		$	10,384

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY

(Unaudited)

(dollars in millions)

	Berkshire Hathaway shareholders’ equity													Total
	Common stock and capital in excess of par value			Accumulated other comprehensive income		Retained earnings		Treasury stock			Non- controlling interests
Balance at December 31, 2012	$	37,238		$	27,500	$	124,272	$	(1,363	)	$	3,941		$	191,588
Net earnings		—			—		4,892		—			125			5,017
Other comprehensive income, net		—			5,492		—		—			(24	)		5,468
Issuance of common stock		39			—		—		—			—			39
Transactions with noncontrolling interests		1			—		—		—			(7	)		(6	)
Balance at March 31, 2013	$	37,278		$	32,992	$	129,164	$	(1,363	)	$	4,035		$	202,106
Balance at December 31, 2013	$	35,480		$	44,025	$	143,748	$	(1,363	)	$	2,595		$	224,485
Net earnings		—			—		4,705		—			68			4,773
Other comprehensive income, net		—			1,024		—		—			28			1,052
Issuance of common stock		35			—		—		—			—			35
Transactions with noncontrolling interests		(42	)		—		—		—			(14	)		(56	)
Balance at March 31, 2014	$	35,473		$	45,049	$	148,453	$	(1,363	)	$	2,677		$	230,289

See accompanying Notes to Consolidated Financial Statements

4

BERKSHIRE HATHAWAY INC.

and Subsidiaries

CONSOLIDATED STATEMENTS OF CASH FLOWS

(dollars in millions)

	First Quarter
	2014			2013
	(Unaudited)
Cash flows from operating activities:
Net earnings	$	4,773		$	5,017
Adjustments to reconcile net earnings to operating cash flows:
Investment (gains) losses		(1,131	)		(505	)
Depreciation and amortization		1,772			1,601
Other		(236	)		(16	)
Changes in operating assets and liabilities before business acquisitions:
Losses and loss adjustment expenses		474			547
Deferred charges reinsurance assumed		(278	)		(389	)
Unearned premiums		1,497			1,306
Receivables and originated loans		(2,415	)		(1,475	)
Derivative contract assets and liabilities		(236	)		(1,117	)
Income taxes		1,141			1,793
Other		(433	)		(707	)
Net cash flows from operating activities		4,928			6,055
Cash flows from investing activities:
Purchases of fixed maturity securities		(1,996	)		(1,807	)
Purchases of equity securities		(1,202	)		(1,411	)
Sales of fixed maturity securities		88			675
Redemptions and maturities of fixed maturity securities		1,989			1,426
Sales of equity securities		103			673
Purchases of loans and finance receivables		(58	)		(57	)
Collections of loans and finance receivables		501			69
Acquisitions of businesses, net of cash acquired		(700	)		(92	)
Purchases of property, plant and equipment		(2,794	)		(2,207	)
Other		214			(1,225	)
Net cash flows from investing activities		(3,855	)		(3,956	)
Cash flows from financing activities:
Proceeds from borrowings of insurance and other businesses		10			2,579
Proceeds from borrowings of railroad, utilities and energy businesses		1,925			1,500
Proceeds from borrowings of finance businesses		749			519
Repayments of borrowings of insurance and other businesses		(27	)		(2,681	)
Repayments of borrowings of railroad, utilities and energy businesses		(838	)		(152	)
Repayments of borrowings of finance businesses		(854	)		(615	)
Change in short term borrowings, net		(4	)		(496	)
Acquisitions of noncontrolling interests		(1,286	)		(590	)
Other		14			(7	)
Net cash flows from financing activities		(311	)		57
Effects of foreign currency exchange rate changes		—			(59	)
Increase in cash and cash equivalents		762			2,097
Cash and cash equivalents at beginning of year *		48,186			46,992
Cash and cash equivalents at end of first quarter *	$	48,948		$	49,089
* Cash and cash equivalents are comprised of the following:
Beginning of year—
Insurance and Other	$	42,433		$	42,358
Railroad, Utilities and Energy		3,400			2,570
Finance and Financial Products		2,353			2,064
	$	48,186		$	46,992
End of first quarter—
Insurance and Other	$	42,193		$	43,984
Railroad, Utilities and Energy		3,847			3,003
Finance and Financial Products		2,908			2,102
	$	48,948		$	49,089

See accompanying Notes to Consolidated Financial Statements

5

BERKSHIRE HATHAWAY INC.

and Subsidiaries

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

March 31, 2014

Note 1. General

The accompanying unaudited Consolidated Financial Statements include the accounts of Berkshire Hathaway Inc. (“Berkshire” or “Company”) consolidated with the accounts of all its subsidiaries and affiliates in which Berkshire holds controlling financial interests as of the financial statement date. In these notes the terms “us,” “we,” or “our” refer to Berkshire and its consolidated subsidiaries. Reference is made to Berkshire’s most recently issued Annual Report on Form 10-K (“Annual Report”) that included information necessary or useful to understanding Berkshire’s businesses and financial statement presentations. Our significant accounting policies and practices were presented as Note 1 to the Consolidated Financial Statements included in the Annual Report. In our 2014 financial statements, we are presenting Marmon’s transportation equipment manufacturing, repair and leasing businesses as a component of finance and financial products businesses. Prior period amounts in these financial statements have been reclassified to conform to the current year presentation. On April 30, 2014, MidAmerican Energy Holdings Company announced it changed its name to Berkshire Hathaway Energy Company (“Berkshire Hathaway Energy”).

Financial information in this Report reflects any adjustments (consisting only of normal recurring adjustments) that are, in the opinion of management, necessary to a fair statement of results for the interim periods in accordance with accounting principles generally accepted in the United States (“GAAP”).

For a number of reasons, our results for interim periods are not normally indicative of results to be expected for the year. The timing and magnitude of catastrophe losses incurred by insurance subsidiaries and the estimation error inherent to the process of determining liabilities for unpaid losses of insurance subsidiaries can be relatively more significant to results of interim periods than to results for a full year. Variations in the amount and timing of investment gains/losses can cause significant variations in periodic net earnings. Investment gains/losses are recorded when investments are disposed or are other-than-temporarily impaired. In addition, changes in the fair value of derivative assets/liabilities associated with derivative contracts can cause significant variations in periodic net earnings.

Note 2. New accounting pronouncements

In February 2013, the FASB issued ASU 2013-04, “Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation Is Fixed at the Reporting Date.” ASU 2013-04 requires an entity to measure obligations resulting from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date as the amount the reporting entity agreed to pay plus additional amounts the reporting entity expects to pay on behalf of its co-obligors. ASU 2013-04 became effective as of January 1, 2014.

In January 2014, the FASB issued ASU 2014-01 “Accounting for Investments in Qualified Affordable Housing Tax Credits.” ASU 2014-01 permits an entity to elect the proportional amortization method of accounting for limited liability investments in qualified affordable housing projects if certain criteria are met. Under the proportional amortization method, the investment is amortized in proportion to the tax benefits received and the amortization charge is reported as a component of income tax expense. We adopted ASU 2014-01 for eligible investments as of January 1, 2014. The adoption of these accounting pronouncements had an immaterial effect on our Consolidated Financial Statements.

In April 2014, the FASB issued ASU 2014-08 “Reporting of Discontinued Operations and Disclosures of Disposals of Components of an Entity.” ASU 2014-08 provides a narrower definition of discontinued operations than under existing U.S. GAAP. ASU 2014-08 requires that only disposals of components of an entity (or groups of components) that represent a strategic shift that has or will have a major effect on the reporting entity’s operations are reported in the financial statements as discontinued operations. ASU 2014-08 also provides guidance on the financial statement presentations and disclosures of discontinued operations. ASU 2014-08 is effective prospectively for disposals (or classifications of held-for-sale) of components of an entity that occur in annual or interim periods beginning after December 15, 2014.

6

Notes To Consolidated Financial Statements (Continued)

Note 3. Significant business acquisitions

Our long-held acquisition strategy is to acquire businesses at sensible prices that have consistent earning power, good returns on equity and able and honest management.

On December 19, 2013, Berkshire Hathaway Energy acquired NV Energy, Inc. (“NV Energy”) for cash consideration of approximately $5.6 billion. NV Energy is an energy holding company serving approximately 1.2 million retail electric and 0.2 million retail natural gas customers in Nevada. NV Energy’s principal operating subsidiaries, Nevada Power Company and Sierra Pacific Power Company, are regulated utilities. We accounted for the acquisition pursuant to the acquisition method. NV Energy’s financial results are included in our Consolidated Financial Statements beginning on the acquisition date.

The preliminary values of NV Energy’s identified assets acquired and liabilities assumed and residual goodwill at the date of acquisition are summarized as follows (in millions).

	December 19, 2013
Property, plant and equipment		$	9,550
Goodwill			2,362
Other assets, including cash of $304 million			2,481
Assets acquired		$	14,393
Accounts payable, accruals and other liabilities		$	3,455
Notes payable and other borrowings			5,342
Liabilities assumed		$	8,797
Net assets acquired		$	5,596

On January 1, 2014, we acquired the beverage dispensing and merchandising operations of British engineering company, IMI plc for approximately $1.13 billion. This business was acquired through Marmon. On February 25, 2014, we acquired 100% of the outstanding common stock of Phillips Specialty Products Inc. (“PSPI”) in exchange for 17,422,615 shares of Phillips 66 (“PSX”) common stock with an aggregate fair value of $1.35 billion. PSPI, which has been renamed as Lubrizol Specialty Products Inc. (“LSPI”), provides flow improver products to customers worldwide. At their respective acquisition dates, the aggregate preliminary fair values of the identified assets and liabilities of IMI plc and LSPI were approximately $1.87 billion and $450 million, respectively, and the residual goodwill was approximately $1.06 billion.

The following table sets forth certain unaudited pro forma consolidated earnings data for the first three months of 2013 (in millions, except per share amounts).

Revenues	$	44,685
Net earnings attributable to Berkshire Hathaway shareholders		4,924
Net earnings per equivalent Class A common share attributable to Berkshire Hathaway shareholders		2,997

7

Notes To Consolidated Financial Statements (Continued)

Note 4. Investments in fixed maturity securities

Investments in securities with fixed maturities as of March 31, 2014 and December 31, 2013 are summarized by type below (in millions).

	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value		Carrying Value
March 31, 2014
Available for sale:
U.S. Treasury, U.S. government corporations and agencies	$	2,926	$	16	$	(7	)	$	2,935	$	2,935
States, municipalities and political subdivisions		2,074		113		(2	)		2,185		2,185
Foreign governments		12,201		221		(85	)		12,337		12,337
Corporate bonds		8,213		1,245		(4	)		9,454		9,454
Mortgage-backed securities		1,769		224		(6	)		1,987		1,987
		27,183		1,819		(104	)		28,898		28,898
Held to maturity:
Wm. Wrigley Jr. Company notes		660		14		—			674		660
	$	27,843	$	1,833	$	(104	)	$	29,572	$	29,558
December 31, 2013
Available for sale:
U.S. Treasury, U.S. government corporations and agencies	$	2,650	$	16	$	(8	)	$	2,658	$	2,658
States, municipalities and political subdivisions		2,221		129		(5	)		2,345		2,345
Foreign governments		11,001		182		(110	)		11,073		11,073
Corporate bonds		9,383		1,190		(15	)		10,558		10,558
Mortgage-backed securities		1,830		218		(8	)		2,040		2,040
		27,085		1,735		(146	)		28,674		28,674
Held to maturity:
Wm. Wrigley Jr. Company notes		679		17		—			696		679
	$	27,764	$	1,752	$	(146	)	$	29,370	$	29,353

Investments in fixed maturity securities are reflected in our Consolidated Balance Sheets as follows (in millions).

	March 31, 2014		December 31, 2013
Insurance and other	$	29,101		$28,785
Finance and financial products		457		568
	$	29,558		$29,353

Investments in foreign government securities include securities issued by national and provincial government entities as well as instruments that are unconditionally guaranteed by such entities. As of March 31, 2014, approximately 93% of foreign government holdings were rated AA or higher by at least one of the major rating agencies and securities issued or guaranteed by the United Kingdom, Germany, Australia, Canada and The Netherlands represented 75% of these investments. Unrealized losses on all fixed maturity investments in a continuous unrealized loss position for more than twelve consecutive months were $21 million as of March 31, 2014 and $26 million as of December 31, 2013.

The amortized cost and estimated fair value of securities with fixed maturities at March 31, 2014 are summarized below by contractual maturity dates. Actual maturities will differ from contractual maturities because issuers of certain of the securities retain early call or prepayment rights. Amounts are in millions.

	Due in one year or less		Due after one year through five years		Due after five years through ten years		Due after ten years		Mortgage- backed securities		Total
Amortized cost		$7,986		$12,704		$2,587		$2,797		$1,769		$27,843
Fair value		8,069		13,431		2,864		3,221		1,987		29,572

8

Notes To Consolidated Financial Statements (Continued)

Note 5. Investments in equity securities

Investments in equity securities as of March 31, 2014 and December 31, 2013 are summarized based on the primary industry of the investee in the table below (in millions).

	Cost Basis		Unrealized Gains		Unrealized Losses			Fair Value
March 31, 2014 *
Banks, insurance and finance	$	22,410	$	30,042	$	(7	)	$	52,445
Consumer products		7,083		16,652		(1	)		23,734
Commercial, industrial and other		30,695		11,888		(276	)		42,307
	$	60,188	$	58,582	$	(284	)	$	118,486

 * As of March 31, 2014, approximately 56% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company – $13.6 billion; Wells Fargo & Company – $24.0 billion; International Business Machines Corporation – $13.2 billion; and The Coca-Cola Company – $15.5 billion).

	Cost Basis		Unrealized Gains		Unrealized Losses			Fair Value
December 31, 2013 *
Banks, insurance and finance	$	22,420	$	28,021	$	—		$	50,441
Consumer products		7,082		17,854		—			24,936
Commercial, industrial and other		29,949		12,322		(143	)		42,128
	$	59,451	$	58,197	$	(143	)	$	117,505

* As of December 31, 2013, approximately 55% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company – $13.8 billion; Wells Fargo & Company – $21.9 billion; International Business Machines Corporation – $12.8 billion; and The Coca-Cola Company – $16.5 billion).

As of March 31, 2014 and December 31, 2013, we concluded that the unrealized losses shown in the tables above were temporary. Our conclusions were based on: (a) our ability and intent to hold the securities to recovery; (b) our assessment that the underlying business and financial condition of each of these issuers was favorable; (c) our opinion that the relative price declines were not significant; and (d) our belief that market prices will increase to and exceed our cost. As of March 31, 2014 and December 31, 2013, unrealized losses on equity securities in a continuous unrealized loss position for more than twelve consecutive months were $44 million and $52 million, respectively.

Investments in equity securities are reflected in our Consolidated Balance Sheets as follows (in millions).

	March 31, 2014		December 31, 2013
Insurance and other	$	116,160	$	115,464
Railroad, utilities and energy *		1,391		1,103
Finance and financial products		935		938
	$	118,486	$	117,505

 * Included in other assets.

Note 6. Other investments

Other investments include preferred stock of Wm. Wrigley Jr. Company (“Wrigley”), The Dow Chemical Company (“Dow”) and Bank of America Corporation (“BAC”) as well as warrants to purchase common stock of BAC. Information concerning each of these investments follows.

In 2008, we acquired $2.1 billion liquidation amount of Wrigley preferred stock in conjunction with Mars’ acquisition of Wrigley. The Wrigley preferred stock is entitled to dividends at a rate of 5% per annum. This investment is included in our Finance and Financial Products businesses.

9

Notes To Consolidated Financial Statements (Continued)

Note 6. Other investments (Continued)

In 2009, we acquired 3,000,000 shares of Series A Cumulative Convertible Perpetual Preferred Stock of Dow (“Dow Preferred”) for a cost of $3 billion. Each share of the Dow Preferred is convertible into 24.201 shares of Dow common stock (equivalent to a conversion price of $41.32 per share). Beginning in April 2014, Dow shall have the right, at its option, to cause some or all of the Dow Preferred to be converted into Dow common stock at the then applicable conversion rate, if Dow’s common stock price exceeds $53.72 per share for any 20 trading days in a consecutive 30-day window ending on the day before Dow exercises its option. The Dow Preferred is entitled to dividends at a rate of 8.5% per annum. The Dow Preferred is included in our Insurance and Other businesses.

In 2011, we acquired 50,000 shares of 6% Cumulative Perpetual Preferred Stock of BAC (“BAC Preferred”) and warrants to purchase 700,000,000 shares of common stock of BAC (“BAC Warrants”) for a combined cost of $5 billion. The BAC Preferred is currently redeemable at any time by BAC at a price of $105,000 per share ($5.25 billion in aggregate). The BAC Warrants expire in 2021 and are exercisable for an aggregate cost of $5 billion ($7.142857/share). The BAC Preferred and BAC Warrants are included in our Insurance and Other businesses (80%) and our Finance and Financial Products businesses (20%). At the end of 2013, Berkshire agreed to a proposed amendment to the terms of the BAC Preferred. Under the proposed amendment, the BAC Preferred would not be redeemable for a period of five years from the date the amendment is adopted and dividends would no longer be cumulative. The amendment is subject to the approval by a majority of the voting power of BAC’s shareholders for which a shareholder vote is scheduled to take place on May 7, 2014.

Our other investments are classified as available-for-sale and are carried at fair value. In the aggregate, the cost of these investments was $10.0 billion and the fair value was approximately $19.1 billion and $17.9 billion at March 31, 2014 and December 31, 2013, respectively.

Note 7. Investments in H.J. Heinz Holding Corporation

On June 7, 2013, Berkshire and an affiliate of the global investment firm 3G Capital (such affiliate, “3G”), through a newly formed holding company, H.J. Heinz Holding Corporation (“Heinz Holding”), acquired H.J. Heinz Company (“Heinz”). Berkshire and 3G each made equity investments in Heinz Holding, which, together with debt financing obtained by Heinz Holding, was used to acquire all outstanding common stock of Heinz for approximately $23.25 billion in the aggregate.

Heinz is one of the world’s leading marketers and producers of healthy, convenient and affordable foods specializing in ketchup, sauces, meals, soups, snacks and infant nutrition. Heinz is a global family of leading branded products, including Heinz^® Ketchup, sauces, soups, beans, pasta, infant foods, Ore-Ida^® potato products, Weight Watchers^® Smart Ones^® entrées and T.G.I. Friday’s^® snacks.

Berkshire’s investments in Heinz Holding consist of 425 million shares of common stock, warrants to acquire approximately 46 million additional shares of common stock, and cumulative compounding preferred stock (“Preferred Stock”) with a liquidation preference of $8 billion. The aggregate cost of these investments was $12.25 billion. 3G acquired 425 million shares of Heinz Holding common stock for $4.25 billion. In addition, Heinz Holding reserved 39.6 million shares of common stock for issuance under stock options.

The Preferred Stock possesses no voting rights except as required by law or for certain matters specified in the Heinz Holding charter. The Preferred Stock is entitled to dividends at 9% per annum whether or not declared, is senior in priority to the common stock and is callable after June 7, 2016 at the liquidation value plus an applicable premium and any accrued and unpaid dividends. Under the Heinz Holding charter and a shareholders’ agreement entered into as of the acquisition date (the “shareholders’ agreement”), after June 7, 2021, Berkshire can cause Heinz Holding to attempt to sell shares of common stock through public offerings or other issuances (“redemption offerings”), the proceeds of which would be required to be used to redeem any outstanding shares of Preferred Stock. The warrants are exercisable for one cent per share and expire on June 7, 2018.

Berkshire and 3G each currently own 50% of the outstanding shares of common stock and possess equal voting interests in Heinz Holding. Under the shareholders’ agreement, unless and until Heinz Holding engages in a public offering, Berkshire and 3G each must approve all significant transactions and governance matters involving Heinz Holding and Heinz so long as Berkshire and 3G each continue to hold at least 66% of their initial common stock investments, except for (i) the declaration and payment of dividends on the Preferred Stock, and actions related to a Heinz Holding call of the Preferred Stock, for which Berkshire does not have a vote or approval right, and (ii) redemption offerings and redemptions resulting therefrom, which may only be triggered by Berkshire. No dividends may be paid on the common stock if there are any unpaid dividends on the Preferred Stock.

10

Notes To Consolidated Financial Statements (Continued)

Note 7. Investments in H.J. Heinz Holding Corporation (Continued)

We account for our investments in Heinz Holding common stock and common stock warrants on the equity method. Accordingly, we included our proportionate share of Heinz Holding’s net earnings attributable to common stockholders and other comprehensive income in our Consolidated Statements of Earnings and Comprehensive Income. We account for our investment in Preferred Stock as an equity investment and it is carried at cost in our Consolidated Balance Sheets. Dividends earned in connection with the Preferred Stock and our share of Heinz Holding’s net earnings attributable to common stockholders are included in interest, dividend and other investment income of Insurance and Other in the Consolidated Statements of Earnings.

Summarized consolidated financial information of Heinz Holding and its subsidiaries follows (in millions).

	March 30, 2014		December 29,2013
Assets	$	38,962		$38,972
Liabilities		22,461		22,429

	First quarter 2014
Sales		$	2,800
Net earnings		$	195
Preferred stock dividends earned by Berkshire			(180	)
Net earnings attributable to common stockholders		$	15
Earnings attributable to Berkshire *		$	188

 * Includes dividends earned plus Berkshire’s share of net earnings attributable to common stockholders.

Note 8. Investment gains/losses

Investment gains/losses are summarized below (in millions).

	First Quarter
	2014			2013
Fixed maturity securities —
Gross gains from sales and other disposals	$	190		$	15
Gross losses from sales and other disposals		(29	)		(54	)
Equity securities —
Gross gains from sales and other disposals		1,004			109
Gross losses from sales and other disposals		—			(1	)
Other-than-temporary impairments		(19	)		(85	)
Other		(15	)		521
	$	1,131		$	505

Investment gains/losses are reflected in the Consolidated Statements of Earnings as follows.

Insurance and other	$	1,059	$	434
Finance and financial products		72		71
	$	1,131	$	505

Gains from disposals of equity securities in the first quarter of 2014 included a non-cash holding gain of $949 million realized on the exchange of PSX common stock in connection with the acquisition of PSPI, which was completed February 25, 2014. The holding gain represents the excess of the fair value of the PSX stock exchanged over its cost basis. See Note 3.

We record investments in equity and fixed maturity securities classified as available-for-sale at fair value and record the difference between fair value and cost in other comprehensive income. Other-than-temporary impairment charges recognized in earnings with respect to such investments represent reductions in the cost basis of the investments, but not the carrying values. Accordingly, these charges are offset by a corresponding credit to other comprehensive income and therefore have no net effect on shareholders’ equity as of the balance sheet date.

11

Notes To Consolidated Financial Statements (Continued)

Note 9. Receivables

Receivables of insurance and other businesses are comprised of the following (in millions).

	March 31, 2014		December 31, 2013
Insurance premiums receivable	$	8,725	$	7,474
Reinsurance recoverable on unpaid losses		3,196		3,055
Trade and other receivables		11,148		10,111
Allowances for uncollectible accounts		(352)		(360)
	$	22,717	$	20,280

Loans and finance receivables of finance and financial products businesses are comprised of the following (in millions).

	March 31, 2014		December 31, 2013
Consumer installment loans, commercial loans and finance receivables	$	12,807	$	13,170
Allowances for uncollectible loans		(343)		(344)
	$	12,464	$	12,826

Consumer installment loans represented approximately 98% and 95% of the aggregate consumer installment loans, commercial loans and finance receivables as of March 31, 2014 and December 31, 2013, respectively. Allowances for uncollectible loans predominantly related to consumer installment loans. Provisions for loan losses for the first quarter of 2014 and 2013 were $46 million and $66 million, respectively and loan charge-offs, net of recoveries, were $47 million in 2014 and $78 million in 2013. The carrying values of loans were net of unamortized acquisition discounts of $321 million at March 31, 2014 and $406 million at December 31, 2013. At March 31, 2014, approximately 97% of the loan balances were evaluated collectively for impairment, and the remainder was evaluated individually for impairment. As a part of the evaluation process, credit quality indicators are reviewed and loans are designated as performing or non-performing. At March 31, 2014, approximately 98% of the loan balances were determined to be performing and approximately 95% of those balances were current as to payment status.

Note 10. Inventories

Inventories are comprised of the following (in millions).

	March 31, 2014		December 31, 2013
Raw materials	$	1,828	$	1,755
Work in process and other		872		842
Finished manufactured goods		3,430		3,206
Goods acquired for resale		4,115		4,057
	$	10,245	$	9,860

Note 11. Property, plant and equipment and assets held for lease

A summary of property, plant and equipment of our insurance and other businesses follows (in millions).

	Ranges of estimated useful life	March 31, 2014		December 31, 2013
Land	—	$	1,104	$	1,098
Buildings and improvements	2 – 40 years		6,308		6,244
Machinery and equipment	3 – 25 years		16,136		15,984
Furniture, fixtures and other	2 – 15 years		2,924		2,748
			26,472		26,074
Accumulated depreciation			(12,674)		(12,451)
		$	13,798	$	13,623

Depreciation expense of insurance and other businesses for the first quarter of 2014 and 2013 was $397 million and $400 million, respectively.

12

Notes To Consolidated Financial Statements (Continued)

Note 11. Property, plant and equipment and assets held for lease (Continued)

A summary of property, plant and equipment of our railroad and our utilities and energy businesses follows (in millions).

	Ranges of estimated useful life	March 31, 2014		December 31, 2013
Railroad:
Land	—	$	5,973	$	5,973
Track structure and other roadway	5 – 100 years		40,525		40,098
Locomotives, freight cars and other equipment	5 – 40 years		7,996		7,551
Construction in progress	—		971		973
Utilities and energy:
Utility generation, distribution and transmission system	5 – 80 years		57,903		57,490
Interstate pipeline assets	3 – 80 years		6,498		6,448
Independent power plants and other assets	3 – 30 years		2,999		2,516
Construction in progress	—		4,247		4,217
			127,112		125,266
Accumulated depreciation			(23,604)		(22,784	)
		$	103,508	$	102,482

Railroad property, plant and equipment includes the land, other roadway, track structure and rolling stock (primarily locomotives and freight cars) of BNSF. The utility generation, distribution and transmission system and interstate pipeline assets are the regulated assets of public utility and natural gas pipeline subsidiaries. Depreciation expense of the railroad, utilities and energy businesses for the first quarter of 2014 and 2013 was $947 million and $795 million, respectively.

Assets held for lease and other property, plant and equipment of our finance and financial products businesses are summarized below (in millions).

	Ranges of estimated useful life	March 31, 2014		December 31, 2013
Assets held for lease	6 – 30 years	$	9,651	$	9,509
Land	—		232		233
Buildings, machinery and other	3 – 50 years		1,159		1,146
			11,042		10,888
Accumulated depreciation			(3,268)		(3,188	)
		$	7,774	$	7,700

Depreciation expense of the finance and financial products businesses for the first quarter of 2014 and 2013 was $148 million and $142 million, respectively.

Note 12. Goodwill and other intangible assets

A reconciliation of the change in the carrying value of goodwill is as follows (in millions).

	March 31, 2014			December 31, 2013
Balance at beginning of year		$	57,011		$	54,523
Acquisitions of businesses			1,236			2,732
Other, including foreign currency translation			17			(244)
Balance at end of period		$	58,264			$57,011

13

Notes To Consolidated Financial Statements (Continued)

Note 12. Goodwill and other intangible assets (Continued)

Intangible assets other than goodwill are included in other assets and are summarized as follows (in millions).

	March 31, 2014						December 31, 2013
	Gross carrying amount			Accumulated amortization			Gross carrying amount			Accumulated amortization
Insurance and other		$	12,924		$	3,936		$	11,923		$	3,723
Railroad, utilities and energy			2,214			1,309			2,214			1,231
		$	15,138		$	5,245		$	14,137		$	4,954
Trademarks and trade names		$	2,988		$	365		$	2,750		$	340
Patents and technology			5,667			2,771			5,173			2,626
Customer relationships			4,880			1,618			4,690			1,518
Other			1,603			491			1,524			470
		$	15,138		$	5,245		$	14,137		$	4,954

Amortization expense was $280 million for the first quarter of 2014 and $264 million for the first quarter of 2013. Intangible assets with indefinite lives as of March 31, 2014 and December 31, 2013 were $2,457 million and $2,221 million, respectively.

Note 13. Derivative contracts

Derivative contracts have been entered into primarily by our finance and financial products and our energy businesses. Substantially all of the derivative contracts of our finance and financial products businesses are not designated as hedges for financial reporting purposes. Changes in the fair values of such contracts are reported in earnings as derivative gains/losses. We entered into these contracts with the expectation that the premiums received would exceed the amounts ultimately paid to counterparties. A summary of derivative contracts of our finance and financial products businesses follows (in millions).

	March 31, 2014										December 31, 2013
	Assets			Liabilities			Notional Value				Assets			Liabilities			Notional Value
Equity index put options		$	—		$	4,800		$	32,225	(1)		$	—		$	4,667		$	32,095	(1)
Credit default			—			275			7,792	(2)			—			648			7,792	(2)
Other, principally interest rate and foreign currency			—			20							—			16
		$	—		$	5,095						$	—		$	5,331

⁽¹⁾  Represents the aggregate undiscounted amount payable at the contract expiration dates assuming that the value of the related index is zero at each contract’s expiration date.

⁽²⁾  Represents the maximum undiscounted future value of losses payable under the contracts, if all underlying issuers default and the residual value of the specified obligations is zero.

Derivative gains/losses of our finance and financial products businesses included in our Consolidated Statements of Earnings for the first quarter of 2014 and 2013 were as follows (in millions).

	First Quarter
	2014			2013
Equity index put options	$	(132	)	$	1,246
Credit default		373			(14	)
Other, principally interest rate and foreign currency		(5	)		(26	)
	$	236		$	1,206

14

Notes To Consolidated Financial Statements (Continued)

Note 13. Derivative contracts (Continued)

We have written no new equity index put option contracts since February 2008. The contracts currently outstanding are European style options written on four major equity indexes. Future payments, if any, under any given contract will be required if the underlying index value is below the strike price at the contract expiration date. We received the premiums on these contracts in full at the contract inception dates and therefore have no counterparty credit risk.

The aggregate intrinsic value (which is the undiscounted liability assuming the contracts are settled based on the index values and foreign currency exchange rates as of the balance sheet date) of our equity index put option contracts was approximately $1.6 billion at March 31, 2014 and $1.7 billion at December 31, 2013. However, these contracts may not be unilaterally terminated or fully settled before the expiration dates which occur between June 2018 and January 2026. Therefore, the ultimate amount of cash basis gains or losses on these contracts will not be determined for many years. The remaining weighted average life of all contracts was approximately 6.75 years at March 31, 2014.

Our remaining credit default contract relates to approximately 500 municipal debt issues with maturities ranging from 2019 to 2054 and has an aggregate notional value of approximately $7.8 billion. The underlying debt issues have a weighted average maturity of approximately 17.5 years. Pursuant to the contract terms, future loss payments, if any, cannot be settled before the maturity dates of the underlying obligations. We have no counterparty credit risk under this contract because all premiums were received at the inception of the contract.

A limited number of our equity index put option contracts contain collateral posting requirements with respect to changes in the fair value or intrinsic value of the contracts and/or a downgrade of Berkshire’s credit ratings. As of March 31, 2014 and December 31, 2013 we did not have any collateral posting requirements. If Berkshire’s credit ratings (currently AA from Standard & Poor’s and Aa2 from Moody’s) are downgraded below either A- by Standard & Poor’s or A3 by Moody’s, additional collateral of up to $1.1 billion could be required to be posted.

Our regulated utility subsidiaries are exposed to variations in the prices of fuel required to generate electricity, wholesale electricity purchased and sold and natural gas supplied for customers. Derivative instruments, including forward purchases and sales, futures, swaps and options, are used to manage a portion of these price risks. Derivative contract assets are included in other assets of railroad, utilities and energy businesses and were $93 million and $87 million as of March 31, 2014 and December 31, 2013, respectively. Derivative contract liabilities are included in accounts payable, accruals and other liabilities of railroad, utilities and energy businesses and were $160 million and $208 million as of March 31, 2014 and December 31, 2013, respectively. Unrealized gains and losses under the contracts of our regulated utilities that are probable of recovery through rates are recorded as regulatory assets or liabilities. Unrealized gains or losses on contracts accounted for as cash flow or fair value hedges are recorded in other comprehensive income or in net earnings, as appropriate.

Note 14. Supplemental cash flow information

A summary of supplemental cash flow information for the first quarter of 2014 and 2013 is presented in the following table (in millions).

	First Quarter
	2014		2013
Cash paid during the period for:
Income taxes	$	283	$	241
Interest:
Insurance and other businesses		139		119
Railroad, utilities and energy businesses		678		505
Finance and financial products businesses		102		139
Investments in equity securities exchanged in connection with business acquisition		1,350		—
Liabilities assumed in connection with business acquisitions		567		—

15

Notes To Consolidated Financial Statements (Continued)

Note 15. Notes payable and other borrowings

Notes payable and other borrowings are summarized below (in millions). The weighted average interest rates and maturity date ranges shown in the following tables are based on borrowings as of March 31, 2014.

	Weighted Average Interest Rate		March 31, 2014		December 31, 2013
Insurance and other:
Issued by Berkshire due 2014-2047		2.7%	$	8,305	$	8,311
Short-term subsidiary borrowings		0.3%		978		949
Other subsidiary borrowings due 2014-2035		6.0%		3,165		3,180
			$	12,448	$	12,440
	Weighted Average Interest Rate		March 31, 2014		December 31, 2013
Railroad, utilities and energy:
Issued by Berkshire Hathaway Energy and its subsidiaries:
Berkshire Hathaway Energy senior unsecured debt due 2017-2043		5.7%	$	6,366	$	6,616
Subsidiary and other debt due 2014-2043		5.3%		23,436		23,033
Issued by BNSF due 2014-2097		5.2%		17,949		17,006
			$	47,751	$	46,655

Berkshire Hathaway Energy subsidiary debt represents amounts issued pursuant to separate financing agreements. All, or substantially all, of the assets of certain Berkshire Hathaway Energy subsidiaries are, or may be, pledged or encumbered to support or otherwise secure the debt. These borrowing arrangements generally contain various covenants including, but not limited to, leverage ratios, interest coverage ratios and debt service coverage ratios. In the first quarter of 2014, Berkshire Hathaway Energy subsidiaries issued term debt of $425 million.

In March 2014, BNSF issued $500 million of 3.75% debentures due in 2024 and $1.0 billion of 4.9% debentures due in 2044. BNSF’s borrowings are primarily unsecured. As of March 31, 2014, BNSF and Berkshire Hathaway Energy and their subsidiaries were in compliance with all applicable debt covenants. Berkshire does not guarantee any debt or other borrowings of BNSF, Berkshire Hathaway Energy or their subsidiaries.

	Weighted Average Interest Rate		March 31, 2014		December 31, 2013
Finance and financial products:
Issued by Berkshire Hathaway Finance Corporation (“BHFC”) due 2014-2043		3.3%	$	11,177	$	11,178
Issued by other subsidiaries due 2014-2036		4.9%		1,847		1,951
			$	13,024	$	13,129

The borrowings of BHFC, a wholly owned finance subsidiary of Berkshire, are fully and unconditionally guaranteed by Berkshire. In January 2014, $750 million of BHFC senior notes matured and BHFC issued $750 million of new senior notes to replace maturing notes. The new senior notes consisted of $650 million of floating rate notes due in 2017 and $100 million of 2% notes due in 2018.

Our subsidiaries have approximately $6.2 billion in the aggregate of unused lines of credit and commercial paper capacity at March 31, 2014, to support short-term borrowing programs and provide additional liquidity. In addition to borrowings of BHFC, Berkshire guaranteed other subsidiary borrowings, which aggregated approximately $4.0 billion at March 31, 2014. Generally, Berkshire’s guarantee of a subsidiary’s debt obligation is an absolute, unconditional and irrevocable guarantee for the full and prompt payment when due of all present and future payment obligations.

16

Notes To Consolidated Financial Statements (Continued)

Note 16. Fair value measurements

Our financial assets and liabilities are summarized below as of March 31, 2014 and December 31, 2013 with fair values shown according to the fair value hierarchy (in millions). The carrying values of cash and cash equivalents, accounts receivable and accounts payable, accruals and other liabilities are considered to be reasonable estimates of their fair values.

	Carrying Value			Fair Value			Quoted Prices (Level 1)			Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
March 31, 2014
Investments in fixed maturity securities:
U.S. Treasury, U.S. government corporations and agencies		$	2,935		$	2,935		$	2,366		$	569		$	—
States, municipalities and political subdivisions			2,185			2,185			—			2,185			—
Foreign governments			12,337			12,337			7,344			4,993			—
Corporate bonds			10,114			10,128			—			9,139			989
Mortgage-backed securities			1,987			1,987			—			1,987			—
Investments in equity securities			118,486			118,486			118,418			61			7
Investment in Heinz Holding Preferred Stock			7,710			8,296			—			—			8,296
Other investments			19,143			19,143			—			—			19,143
Loans and finance receivables			12,464			11,561			—			62			11,499
Derivative contract assets (1)			93			93			4			33			56
Derivative contract liabilities:
Railroad, utilities and energy (1)			160			160			—			117			43
Finance and financial products:
Equity index put options			4,800			4,800			—			—			4,800
Credit default			275			275			—			—			275
Notes payable and other borrowings:
Insurance and other			12,448			12,842			—			12,842			—
Railroad, utilities and energy			47,751			52,281			—			52,281			—
Finance and financial products			13,024			13,554			—			12,920			634
December 31, 2013
Investments in fixed maturity securities:
U.S. Treasury, U.S. government corporations and agencies		$	2,658		$	2,658		$	2,184		$	473		$	1
States, municipalities and political subdivisions			2,345			2,345			—			2,345			—
Foreign governments			11,073			11,073			7,467			3,606			—
Corporate bonds			11,237			11,254			—			10,187			1,067
Mortgage-backed securities			2,040			2,040			—			2,040			—
Investments in equity securities			117,505			117,505			117,438			60			7
Investment in Heinz Holding Preferred Stock			7,710			7,971			—			—			7,971
Other investments			17,951			17,951			—			—			17,951
Loans and finance receivables			12,826			12,002			—			454			11,548
Derivative contract assets (1)			87			87			3			15			69
Derivative contract liabilities:
Railroad, utilities and energy (1)			208			208			1			198			9
Finance and financial products:
Equity index put options			4,667			4,667			—			—			4,667
Credit default			648			648			—			—			648
Notes payable and other borrowings:
Insurance and other			12,440			12,655			—			12,655			—
Railroad, utilities and energy			46,655			49,879			—			49,879			—
Finance and financial products			13,129			13,505			—			12,846			659

⁽¹⁾  Assets are included in other assets and liabilities are included in accounts payable, accruals and other liabilities.

17

Notes To Consolidated Financial Statements (Continued)

Note 16. Fair value measurements (Continued)

The fair values of substantially all of our financial instruments were measured using market or income approaches. Considerable judgment may be required in interpreting market data used to develop the estimates of fair value. Accordingly, the fair values presented are not necessarily indicative of the amounts that could be realized in an actual current market exchange. The use of alternative market assumptions and/or estimation methodologies may have a material effect on the estimated fair value. The hierarchy for measuring fair value consists of Levels 1 through 3, which are described below.

Level 1 – Inputs represent unadjusted quoted prices for identical assets or liabilities exchanged in active markets.

Level 2 – Inputs include directly or indirectly observable inputs (other than Level 1 inputs) such as quoted prices for similar assets or liabilities exchanged in active or inactive markets; quoted prices for identical assets or liabilities exchanged in inactive markets; other inputs that may be considered in fair value determinations of the assets or liabilities, such as interest rates and yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates; and inputs that are derived principally from or corroborated by observable market data by correlation or other means. Pricing evaluations generally reflect discounted expected future cash flows, which incorporate yield curves for instruments with similar characteristics, such as credit ratings, estimated durations and yields for other instruments of the issuer or entities in the same industry sector.

Level 3 – Inputs include unobservable inputs used in the measurement of assets and liabilities. Management is required to use its own assumptions regarding unobservable inputs because there is little, if any, market activity in the assets or liabilities and we may be unable to corroborate the related observable inputs. Unobservable inputs require management to make certain projections and assumptions about the information that would be used by market participants in pricing assets or liabilities.

Reconciliations of assets and liabilities measured and carried at fair value on a recurring basis with the use of significant unobservable inputs (Level 3) for the three months ending March 31, 2014 and 2013 follow (in millions).

	Investments in fixed maturity securities			Investments in equity securities and other investments		Net derivative contract liabilities
Three months ending March 31, 2014
Balance at December 31, 2013	$	372		$	17,958	$	(5,255	)
Gains (losses) included in:
Earnings		—			—		222
Other comprehensive income		—			1,192		3
Regulatory assets and liabilities		—			—		2
Dispositions and settlements		(1	)		—		—
Transfers into (out of) Level 3		(56	)		—		(35	)
Balance at March 31, 2014	$	315		$	19,150	$	(5,063	)
Three months ending March 31, 2013
Balance at December 31, 2012	$	652		$	15,785	$	(7,847	)
Gains (losses) included in:
Earnings		—			520		1,235
Other comprehensive income		(2	)		399		(3	)
Regulatory assets and liabilities		—			—		1
Dispositions and settlements		(1	)		—		(27	)
Transfers into (out of) Level 3		—			—		—
Balance at March 31, 2013	$	649		$	16,704	$	(6,641	)

18

Notes To Consolidated Financial Statements (Continued)

Note 16. Fair value measurements (Continued)

Gains and losses included in earnings are included as components of investment gains/losses, derivative gains/losses and other revenues, as appropriate and are primarily related to changes in the values of derivative contracts and settlement transactions. Gains and losses included in other comprehensive income are included as components of the net change in unrealized appreciation of investments and the reclassification of investment appreciation in earnings, as appropriate in the Consolidated Statements of Comprehensive Income.

Quantitative information as of March 31, 2014, with respect to assets and liabilities measured and carried at fair value on a recurring basis with the use of significant unobservable inputs (Level 3) follows (in millions).

	Fair value		Principal valuation techniques	Unobservable Inputs	Weighted Average
Other investments:
Preferred stocks	$	12,297	Discounted cash flow	Expected duration	6 years
				Discount for transferability restrictions and subordination	97 basis points
Common stock warrants		6,846	Warrant pricing model	Discount for transferability and hedging restrictions	8%
Net derivative liabilities:
Equity index put options		4,800	Option pricing model	Volatility	20%
Credit default-states/municipalities		275	Discounted cash flow	Credit spreads	48 basis points

Other investments currently consist of investments that were acquired in a few relatively large private placement transactions and include preferred stocks and common stock warrants. These investments are subject to contractual restrictions on transferability and/or provisions that prevent us from economically hedging our investments. In applying discounted estimated cash flow techniques in valuing the perpetual preferred stocks, we made assumptions regarding the expected durations of the investments, as the issuers may have the right to redeem or convert these investments. We also made estimates regarding the impact of subordination, as the preferred stocks have a lower priority in liquidation than debt instruments of the issuers, which affected the discount rates used. In valuing the common stock warrants, we used a warrant valuation model. While most of the inputs to the model are observable, we are subject to the aforementioned contractual restrictions. We have applied discounts with respect to the contractual restrictions. Increases or decreases to these inputs would result in decreases or increases to the fair values of the investments.

Our equity index put option and credit default contracts are not exchange traded and certain contract terms are not standard in derivatives markets. For example, we are not required to post collateral under most of our contracts and many contracts have long durations, and therefore are illiquid. For these and other reasons, we classified these contracts as Level 3. The methods we use to value these contracts are those that we believe market participants would use in determining exchange prices with respect to our contracts.

We value equity index put option contracts based on the Black-Scholes option valuation model. Inputs to this model include current index price, contract duration, dividend and interest rate inputs (including a Berkshire non-performance input) which are observable. However, we believe that the valuation of long-duration options using any model is inherently subjective, given the lack of observable transactions and prices, and acceptable values may be subject to wide ranges. Expected volatility inputs represent our expectations after considering the remaining duration of each contract and that the contracts will remain outstanding until the expiration dates without offsetting transactions occurring in the interim. Increases or decreases in the volatility inputs will produce increases or decreases in the fair values of the liabilities.

19

Notes To Consolidated Financial Statements (Continued)

Note 17. Common stock

Changes in Berkshire’s issued and outstanding common stock during the first quarter of 2014 are shown in the table below.

	Class A, $5 Par Value (1,650,000 shares authorized)									Class B, $0.0033 Par Value (3,225,000,000 shares authorized)
	Issued			Treasury			Outstanding			Issued		Treasury			Outstanding
Balance at December 31, 2013		868,616			(9,573	)		859,043			1,178,775,092		(1,408,484	)		1,177,366,608
Conversions of Class A common stock to Class B common stock and exercises of replacement stock options issued in a business acquisition		(1,443	)		—			(1,443	)		2,666,267		—			2,666,267
Balance at March 31, 2014		867,173			(9,573	)		857,600			1,181,441,359		(1,408,484	)		1,180,032,875

Each Class A common share is entitled to one vote per share. Class B common stock possesses dividend and distribution rights equal to one-fifteen-hundredth (1/1,500) of such rights of Class A common stock. Each Class B common share possesses voting rights equivalent to one-ten-thousandth (1/10,000) of the voting rights of a Class A share. Unless otherwise required under Delaware General Corporation Law, Class A and Class B common shares vote as a single class. Each share of Class A common stock is convertible, at the option of the holder, into 1,500 shares of Class B common stock. Class B common stock is not convertible into Class A common stock. On an equivalent Class A common stock basis, there were 1,644,289 shares outstanding as of March 31, 2014 and 1,643,954 shares outstanding as of December 31, 2013. In addition to our common stock, 1,000,000 shares of preferred stock are authorized, but none are issued and outstanding.

In September 2011, Berkshire’s Board of Directors (“Berkshire’s Board”) approved a common stock repurchase program under which Berkshire may repurchase its Class A and Class B shares at prices no higher than a 10% premium over the book value of the shares. In December 2012, Berkshire’s Board amended the repurchase program by raising the price limit to no higher than a 20% premium over book value. Berkshire may repurchase shares in the open market or through privately negotiated transactions. Berkshire’s Board authorization does not specify a maximum number of shares to be repurchased. However, repurchases will not be made if they would reduce Berkshire’s consolidated cash equivalent holdings below $20 billion. The repurchase program is expected to continue indefinitely and the amount of repurchases will depend entirely upon the level of cash available, the attractiveness of investment and business opportunities either at hand or on the horizon, and the degree of discount of the market price relative to management’s estimate of intrinsic value. The repurchase program does not obligate Berkshire to repurchase any dollar amount or number of Class A or Class B shares and there is no expiration date to the program. There were no share purchases in the first three months of 2014.

20

Notes To Consolidated Financial Statements (Continued)

Note 18. Accumulated other comprehensive income

A summary of the net changes in after-tax accumulated other comprehensive income attributable to Berkshire Hathaway shareholders and significant amounts reclassified out of accumulated other comprehensive income for the three months ending March 31, 2014 and 2013 follows (in millions).

	Unrealized appreciation of investments, net				Foreign currency translation				Prior service and actuarial gains/losses of defined benefit pension plans				Other				Accumulated other comprehensive income
Three months ending March 31, 2014
Balance at December 31, 2013		$	44,042			$	(146	)		$	46			$	83			$	44,025
Other comprehensive income, net before reclassifications			1,674				24				(7	)			18				1,709
Amounts reclassified from accumulated other comprehensive income			(677	)			—				14				(22	)			(685	)
			997				24				7				(4	)			1,024
Balance at March 31, 2014		$	45,039			$	(122	)		$	53			$	79			$	45,049
Amounts reclassified from other comprehensive income into net earnings during 2014 are included on the following line items:
Investment gains/losses:
Insurance and other		$	(969	)		$	—			$	—			$	—			$	(969	)
Finance and financial products			(72	)			—				—				—				(72	)
Other			—				—				18				(37	)			(19	)
Reclassifications before income taxes			(1,041	)			—				18				(37	)			(1,060	)
Applicable income taxes			(364	)			—				4				(15	)			(375	)
		$	(677	)		$	—			$	14			$	(22	)		$	(685	)
Three months ending March 31, 2013
Balance at December 31, 2012		$	29,254			$	(120	)		$	(1,601	)		$	(33	)		$	27,500
Other comprehensive income, net before reclassifications			6,308				(560	)			24				12				5,784
Amounts reclassified from accumulated other comprehensive income			(328	)			—				34				2				(292	)
			5,980				(560	)			58				14				5,492
Balance at March 31, 2013		$	35,234			$	(680	)		$	(1,543	)		$	(19	)		$	32,992
Amounts reclassified from other comprehensive income into net earnings during 2013 are included on the following line items:
Investment gains/losses:
Insurance and other		$	(436	)		$	—			$	—			$	—			$	(436	)
Finance and financial products			(68	)			—				—				—				(68	)
Other			—				—				46				3				49
Reclassifications before income taxes			(504	)			—				46				3				(455	)
Applicable income taxes			(176	)			—				12				1				(163	)
		$	(328	)		$	—			$	34			$	2			$	(292	)

21

Notes To Consolidated Financial Statements (Continued)

Note 19. Contingencies and Commitments

We are parties in a variety of legal actions arising out of the normal course of business. In particular, such legal actions affect our insurance and reinsurance businesses. Such litigation generally seeks to establish liability directly through insurance contracts or indirectly through reinsurance contracts issued by Berkshire subsidiaries. Plaintiffs occasionally seek punitive or exemplary damages. We do not believe that such normal and routine litigation will have a material effect on our financial condition or results of operations. Berkshire and certain of its subsidiaries are also involved in other kinds of legal actions, some of which assert or may assert claims or seek to impose fines and penalties. We believe that any liability that may arise as a result of other pending legal actions will not have a material effect on our consolidated financial condition or results of operations.

Berkshire owns a 50% interest in a joint venture, Berkadia Commercial Mortgage (“Berkadia”) and affiliates, with Leucadia National Corporation (“Leucadia”) having the other 50% interest. Berkadia is a servicer of commercial real estate loans in the U.S., performing primary, master and special servicing functions for U.S. government agency programs, commercial mortgage-backed securities transactions, banks, insurance companies and other financial institutions. A significant source of funding for Berkadia’s operations is through its issuance of commercial paper. Repayment of the commercial paper is supported by a $2.5 billion surety policy issued by a Berkshire insurance subsidiary. Leucadia has agreed to indemnify Berkshire for one-half of any losses incurred under the policy. As of March 31, 2014, the aggregate amount of Berkadia commercial paper outstanding was $2.47 billion.

On May 1, 2014, Berkshire Hathaway Energy entered into a Share Purchase Agreement to acquire 100% of AltaLink, L.P. (“AltaLink”), an indirect wholly-owned subsidiary of SNC-Lavalin Group Inc. for an estimated cash purchase price of C$3.2 billion (approximately US$2.9 billion). We currently expect that the acquisition will be funded with a combination of cash and new Berkshire Hathaway Energy senior unsecured debt. AltaLink is a regulated transmission-only business, headquartered in Calgary, Alberta. The transaction is subject to customary closing conditions, including required approvals, and is expected to be completed by the end of 2014.

Note 20. Business segment data

Revenues by segment for the first quarter of 2014 and 2013 were as follows (in millions).

	First Quarter
	2014		2013
Operating Businesses:
Insurance group:
Premiums earned:
GEICO	$	4,884	$	4,399
General Re		1,557		1,469
Berkshire Hathaway Reinsurance Group		2,022		2,796
Berkshire Hathaway Primary Group		953		713
Investment income		951		1,001
Total insurance group		10,367		10,378
BNSF		5,447		5,284
Finance and financial products		1,435		1,373
Manufacturing businesses		8,641		8,161
McLane Company		10,454		10,785
Berkshire Hathaway Energy		4,306		3,116
Other businesses		3,358		3,091
		44,008		42,188
Reconciliation of segments to consolidated amount:
Investment and derivative gains/losses		1,367		1,711
Eliminations and other		78		(32	)
	$	45,453	$	43,867

22

Notes To Consolidated Financial Statements (Continued)

Note 20. Business segment data (Continued)

Earnings before income taxes by segment for the first quarter of 2014 and 2013 were as follows (in millions).

	First Quarter
	2014			2013
Operating Businesses:
Insurance group:
Underwriting gain (loss):
GEICO	$	353		$	266
General Re		80			95
Berkshire Hathaway Reinsurance Group		183			974
Berkshire Hathaway Primary Group		99			54
Net investment income		946			996
Total insurance group		1,661			2,385
BNSF		1,169			1,289
Finance and financial products		372			296
Manufacturing businesses		1,068			948
McLane Company		115			132
Berkshire Hathaway Energy		619			553
Other businesses		287			282
		5,291			5,885
Reconciliation of segments to consolidated amount:
Investment and derivative gains/losses		1,367			1,711
Interest expense, excluding interest allocated to operating businesses		(77	)		(72	)
Eliminations and other		17			(229	)
	$	6,598		$	7,295

23

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Results of Operations

Net earnings attributable to Berkshire are disaggregated in the table that follows. Amounts are after deducting income taxes and exclude earnings attributable to noncontrolling interests. Amounts are in millions.

	First Quarter
	2014		2013
Insurance – underwriting	$	461	$	901
Insurance – investment income		720		799
Railroad		724		798
Utilities and energy		452		394
Manufacturing, service and retailing		933		862
Finance and financial products		238		191
Other		5		(163)
Investment and derivative gains/losses		1,172		1,110
Net earnings attributable to Berkshire	$	4,705	$	4,892

Through our subsidiaries, we engage in a number of diverse business activities. Our operating businesses are managed on an unusually decentralized basis. There are essentially no centralized or integrated business functions (such as sales, marketing, purchasing, legal or human resources) and there is minimal involvement by our corporate headquarters in the day-to-day business activities of the operating businesses. Our senior corporate management team participates in and is directly responsible for significant capital allocation decisions, investment activities and the selection of the Chief Executive to head each of the operating businesses. It also is responsible for establishing and monitoring Berkshire’s corporate governance practices, including, but not limited to, communicating the appropriate “tone at the top” messages to its employees and associates, monitoring governance efforts, including those at the operating businesses, and participating in the resolution of governance-related issues as needed. The business segment data (Note 20 to the Consolidated Financial Statements) should be read in conjunction with this discussion.

Our insurance businesses generated after-tax earnings from underwriting in the first quarter of 2014 of $461 million. Our railroad business generated lower after-tax earnings in the first quarter of 2014, as revenues and operating expenses were negatively impacted by adverse weather conditions and service-related challenges during the quarter. After-tax earnings of our utilities and energy businesses in 2014 included NV Energy, which was acquired in December 2013 and also included higher earnings from MidAmerican Energy Company and natural gas pipeline businesses, which were positively impacted by weather. Earnings from our manufacturing, service and retailing businesses in 2014 increased 8% in the aggregate over 2013.

Investment and derivative gains/losses in the first quarter included after-tax gains from investments of $1,019 million in 2014 and $326 million in 2013. Investment gains in the first quarter of 2014 included an after-tax gain of approximately $900 million related to the exchange of Phillips 66 common stock for 100% of the common stock of a specialty chemical products subsidiary of Phillips 66. In addition, our derivative contracts produced after-tax gains in the first quarter of $153 million in 2014 and $784 million in 2013. We believe that realized investment gains/losses, other-than-temporary impairment charges and derivative gains/losses are often meaningless in terms of understanding our reported results or evaluating our economic performance. These gains and losses and changes in the equity and credit markets from period to period have caused and will likely continue to cause significant volatility in our periodic earnings.

Insurance—Underwriting

We engage in both primary insurance and reinsurance of property/casualty, life and health risks. In primary insurance activities, we assume defined portions of the risks of loss from persons or organizations that are directly subject to the risks. In reinsurance activities, we assume defined portions of similar or dissimilar risks that other insurers or reinsurers have subjected themselves to in their own insuring activities. Our insurance and reinsurance businesses are: (1) GEICO, (2) General Re, (3) Berkshire Hathaway Reinsurance Group (“BHRG”) and (4) Berkshire Hathaway Primary Group.

Our management views insurance businesses as possessing two distinct operations – underwriting and investing. Underwriting decisions are the responsibility of the unit managers; investing decisions, with limited exceptions, are the responsibility of Berkshire’s Chairman and CEO, Warren E. Buffett. Accordingly, we evaluate the performance of underwriting operations without any allocation of investment income. Underwriting results represent insurance premiums earned less insurance losses, benefits and underwriting expenses incurred.

24

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

Insurance—Underwriting (Continued)

The timing and amount of catastrophe losses can produce significant volatility in our periodic underwriting results, particularly with respect to BHRG and General Re. For the purposes of this discussion, we categorize catastrophe losses as significant if the pre-tax losses incurred from a single event (or series of related events) exceed $100 million on a consolidated basis. In the first quarter of 2014 and 2013, there were no significant catastrophe events.

Our periodic underwriting results may be affected significantly by changes in estimates for unpaid losses and loss adjustment expenses, including amounts established for occurrences in prior years. Periodic underwriting results may also include significant foreign currency transaction gains and losses arising from the changes in the valuations of certain non-U.S. Dollar denominated reinsurance liabilities as a result of foreign currency exchange rate fluctuations. Historically, currency exchange rates have been volatile and the resulting impact on our periodic underwriting earnings has been relatively significant. These gains and losses are included in underwriting expenses. BHRG’s underwriting results included pre-tax losses of $48 million in the first quarter of 2014 and pre-tax gains of $223 million in the first quarter of 2013 from currency exchange rate changes.

A key marketing strategy followed by all of our insurance businesses is the maintenance of extraordinary capital strength. Statutory surplus of our insurance businesses was approximately $129 billion at December 31, 2013. This superior capital strength creates opportunities, especially with respect to reinsurance activities, to negotiate and enter into insurance and reinsurance contracts specially designed to meet the unique needs of insurance and reinsurance buyers.

A summary follows of underwriting results from our insurance businesses. Amounts are in millions.

	First Quarter
	2014		2013
Underwriting gain attributable to:
GEICO	$	353	$	266
General Re		80		95
Berkshire Hathaway Reinsurance Group		183		974
Berkshire Hathaway Primary Group		99		54
Pre-tax underwriting gain		715		1,389
Income taxes and noncontrolling interests		254		488
Net underwriting gain	$	461	$	901

GEICO

Through GEICO, we primarily write private passenger automobile insurance, offering coverages to insureds in all 50 states and the District of Columbia. GEICO’s policies are marketed mainly by direct response methods in which customers apply for coverage directly to the company via the Internet or over the telephone. This is a significant element in our strategy to be a low-cost auto insurer. In addition, we strive to provide excellent service to customers, with the goal of establishing long-term customer relationships. GEICO’s underwriting results are summarized below. Dollars are in millions.

	First Quarter
	2014				2013
	Amount		%		Amount		%
Premiums earned	$	4,884		100.0	$	4,399		100.0
Losses and loss adjustment expenses		3,701		75.8		3,353		76.2
Underwriting expenses		830		17.0		780		17.8
Total losses and expenses		4,531		92.8		4,133		94.0
Pre-tax underwriting gain	$	353			$	266

Premiums written in the first quarter of 2014 were $5,339 million, an increase of 10.3% as compared to the first quarter of 2013. Premiums earned in the first quarter of 2014 increased $485 million (11.0%) to $4,884 million. The growth in premiums earned for voluntary auto was 11.0%, reflecting policies-in-force growth of 7.2% during the past twelve months and increased premiums per policy. Voluntary auto new business sales increased about 1.0% in the first quarter of 2014 compared to the first quarter of 2013. Voluntary auto policies-in-force at March 31, 2014 were approximately 357,000 greater than at December 31, 2013. In recent years, the growth in voluntary auto policies-in-force has been the greatest during the first quarter.

25

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

Insurance—Underwriting (Continued)

GEICO (Continued)

Losses and loss adjustment expenses incurred in the first quarter of 2014 were $3,701 million, an increase of $348 million (10.4%) over the first quarter of 2013. Our ratio of losses and loss adjustment expenses incurred to premiums earned (the “loss ratio”) was 75.8% in the first quarter of 2014 compared to 76.2% in 2013. In the first quarter of 2014, claims frequencies for property damage and collision coverages increased in the seven to ten percent range due to more severe winter weather as compared to the first quarter of 2013. Claims frequencies for bodily injury coverage increased in the two to three percent range while frequencies for personal injury protection (PIP) have increased one to two percent. Physical damage severities have been relatively flat and bodily injury and PIP severities have decreased in the two to three percent range from 2013. Underwriting expenses in the first quarter of 2014 were $830 million, an increase of $50 million (6.4%) over 2013. The increase was primarily attributable to costs incurred to generate the increase in policies-in-force and to maintain service for existing policyholders.

General Re

Through General Re, we conduct a reinsurance business offering property and casualty and life and health coverages to clients worldwide. We write property and casualty reinsurance in North America on a direct basis through General Reinsurance Corporation and internationally through Germany-based General Reinsurance AG and other wholly-owned affiliates. Property and casualty reinsurance is also written in broker markets through Faraday in London. Life and health reinsurance is written in North America through General Re Life Corporation and internationally through General Reinsurance AG. General Re strives to generate underwriting profits in essentially all of its product lines. Our management does not evaluate underwriting performance based upon market share and our underwriters are instructed to reject inadequately priced risks. General Re’s underwriting results are summarized in the following table. Amounts are in millions.

	First Quarter
	Premiums earned						Pre-tax underwriting gain (loss)
	2014			2013			2014				2013
Property/casualty		$	788		$	758		$	96			$	96
Life/health			769			711			(16	)			(1	)
		$	1,557		$	1,469		$	80			$	95

Property/casualty

Property/casualty premiums earned in the first quarter of 2014 were $788 million, an increase of $30 million (4%) compared to 2013. Adjusting for the differences in foreign currency exchange rates, premiums earned in the first quarter of 2014 increased $10 million (1%). Strong price competition in property and casualty markets persists. Our underwriters continue to exercise discipline by declining business where prices are deemed inadequate. We remain prepared to increase premium volume when appropriate prices are attained relative to the risks assumed.

Our property/casualty business produced first quarter net underwriting gains of $96 million in both 2014 and 2013. Our property business generated net underwriting gains of $125 million in 2014 and $110 million in 2013. We did not experience any losses from significant catastrophe events in the first quarter of either year. Property results also benefitted from reductions of estimated ultimate losses for prior years’ occurrences, which resulted in pre-tax underwriting gains of $45 million in 2014 and $46 million in 2013. The favorable development in each period was primarily attributable to lower than expected losses reported by clients. The timing and magnitude of catastrophe and large individual losses has produced and is expected to continue to produce significant volatility in periodic underwriting results.

In the first quarter of 2014, our casualty/workers’ compensation business incurred net underwriting losses of $29 million as compared to $14 million in 2013. The pre-tax underwriting losses in our casualty/workers’ compensation business were net of gains of $54 million in 2014 and $75 million in 2013 from the run-off of prior years’ losses, reflecting lower than anticipated reported losses from ceding companies. Casualty losses tend to be long-tail and it should not be assumed that favorable loss experience in a given period means that the loss reserve estimates currently established will continue to develop favorably.

26

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

Insurance—Underwriting (Continued)

General Re (Continued)

Life/health

Premiums earned in the first quarter of 2014 were $769 million, an increase of $58 million (8%) compared to 2013. Adjusting for the effects of foreign currency exchange rate changes, premiums earned increased $53 million (7%) compared to the first quarter of 2013. The increases were primarily related to increased life business in non-U.S. markets. The life/health operations produced first quarter pre-tax underwriting losses of $16 million in 2014 and $1 million in 2013. In 2014, our international life/health business incurred increased losses on disability business in Europe and an increase in large claims in the Australian life business, which contributed to a $13 million decline in its net underwriting results as compared to 2013. The first quarter underwriting losses in both years also reflected periodic discount accretion on U.S. long-term care liabilities.

Berkshire Hathaway Reinsurance Group

Through BHRG, we underwrite excess-of-loss reinsurance and quota-share coverages on property and casualty risks for insurers and reinsurers worldwide. BHRG’s business includes catastrophe excess-of-loss reinsurance and excess primary insurance and facultative reinsurance for large or otherwise unusual property risks referred to as individual risk. BHRG also writes retroactive reinsurance, which provides indemnification of losses and loss adjustment expenses with respect to past loss events. Other multi-line property/casualty refers to various coverages written on both a quota-share and excess basis. BHRG’s underwriting activities also include life reinsurance, structured settlement annuities and annuity reinsurance. Amounts are in millions.

	First Quarter
	Premiums earned				Pre-tax underwriting gain (loss)
	2014		2013		2014			2013
Catastrophe and individual risk	$	175	$	173	$	165		$	178
Retroactive reinsurance		225		319		(53	)		(68	)
Other multi-line property/casualty		1,029		1,322		126			551
Life and annuity		593		982		(55	)		313
	$	2,022	$	2,796	$	183		$	974

Premiums earned in the first quarter of 2014 from catastrophe and individual risk contracts were relatively unchanged from the first quarter of 2013. The level of business written in a given period will vary significantly depending on changes in market conditions and management’s assessment of the adequacy of premium rates. We have constrained the volume of business written in recent years. However, we have the capacity and desire to write substantially more business when appropriate pricing can be obtained. The timing and magnitude of losses produces extraordinary volatility in periodic underwriting results of this business.

Retroactive reinsurance policies provide indemnification of unpaid losses and loss adjustment expenses with respect to past loss events, and related claims are generally expected to be paid over long periods of time. Premiums and limits of indemnification are often very large in amount. At the inception of a contract, deferred charge assets are recorded as the excess, if any, of the estimated ultimate losses payable over the premiums earned. Deferred charges are subsequently amortized over the estimated claims payment period using the interest method, which reflects estimates of the timing and amount of loss payments. The original estimates of the timing and amount of loss payments are periodically analyzed against actual experience and revised based on an actuarial evaluation of the expected remaining losses. Amortization charges and deferred charge adjustments resulting from changes to the estimated timing and amount of future loss payments are included as a component of losses and loss adjustment expenses.

The underwriting losses from retroactive policies for the first quarter of 2014 and 2013 primarily represented deferred charge amortization. There were no significant adjustments to estimated ultimate losses related to prior years’ contracts during the first quarter of 2014. Gross unpaid losses from retroactive reinsurance contracts were approximately $18.0 billion as of March 31, 2014 and $17.7 billion at December 31, 2013. Unamortized deferred charges related to BHRG’s retroactive reinsurance contracts were approximately $4.54 billion at March 31, 2014 and $4.25 billion at December 31, 2013.

27

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

Insurance—Underwriting (Continued)

Berkshire Hathaway Reinsurance Group (Continued)

Other multi-line property and casualty premiums earned in the first quarter of 2014 were $1,029 million, a decline of $293 million (22%) versus 2013. Premiums earned in 2014 with respect to the Swiss Re quota-share contract declined $408 million from premiums earned in the first quarter of 2013, which was partially offset by increased premiums earned from property quota-share contracts. The Swiss Re quota-share contract remains in run-off with respect to subject business incepting prior to its expiration at the end of 2012.

Other multi-line property and casualty underwriting generated a pre-tax underwriting gain of $126 million in the first quarter of 2014 compared to $551 million in the first quarter of 2013. Periodic underwriting results of this business can be significantly impacted by catastrophe losses and foreign currency transaction gains or losses associated with the changes in the valuation of certain reinsurance liabilities of U.S.-based subsidiaries (primarily liabilities arising under retroactive reinsurance contracts), which are denominated in foreign currencies. Underwriting results included foreign currency exchange rate losses of $37 million for the first quarter of 2014 compared to gains of $189 million in the first quarter of 2013. In the first quarter of 2013, underwriting results also included a net gain of $235 million attributable to the Swiss Re quota-share contract, which largely related to decreased estimated ultimate liabilities for prior years’ losses. This contract had an insignificant impact on underwriting results in 2014.

Life and annuity premiums earned in the first quarter of 2014 were $593 million, a decrease of $389 million (40%) from 2013. Premiums earned in the first quarter of 2013 included $1.7 billion from a new reinsurance contract, which provides guaranteed minimum death benefit coverages on a specified portfolio of variable annuity reinsurance contracts that have been in run-off for a number of years. Premiums from this contract were partially offset by the reversal of premiums previously earned (approximately $1.3 billion) under the Swiss Re Life & Health America Inc. (“SRLHA”) yearly renewable term life insurance contract as a result of contract amendments. The amendments essentially commuted coverage with respect to a number of the underlying contracts in exchange for payments to SRLHA of $675 million.

Life and annuity business produced a pre-tax underwriting loss of $55 million in the first quarter of 2014 compared to a gain of $313 million in the first quarter of 2013. In 2013, underwriting results included a one-time pre-tax gain of $255 million related to aforementioned amendments to the SRLHA contract. Underwriting results in 2014 also included a pre-tax loss of approximately $28 million related to the variable annuity guarantee business compared to an underwriting gain of $19 million in the first quarter of 2013.

Underwriting results in each period include the recurring impact of the accretion of discounted annuity liabilities, adjustments for mortality experience and changes in foreign currency exchange rates applicable to certain of the contracts. Liabilities related to certain of these contracts are payable in foreign currencies and the changes in currency exchange rates produced a pre-tax loss of $11 million in the first quarter of 2014 versus a pre-tax gain of $34 million in the first quarter of 2013. At March 31, 2014 and December 31, 2013, our aggregate life and non-life annuity liabilities were approximately $6.0 billion and $5.7 billion, respectively.

Berkshire Hathaway Primary Group

The Berkshire Hathaway Primary Group (“BH Primary”) consists of a wide variety of independently managed insurance businesses. These businesses include: Medical Protective Company and Princeton Insurance Company, providers of healthcare malpractice insurance coverages; National Indemnity Company’s primary group, writers of commercial motor vehicle and general liability coverages; U.S. Investment Corporation, whose subsidiaries underwrite specialty insurance coverages; a group of companies referred to internally as “Berkshire Hathaway Homestate Companies,” providers of commercial multi-line insurance, including workers’ compensation; Central States Indemnity Company, a provider of credit and Medicare Supplement insurance; Applied Underwriters, a provider of integrated workers’ compensation solutions; BoatU.S., a writer of insurance for owners of boats and small watercraft; and GUARD Insurance Group (“GUARD”), a provider of workers’ compensation and complimentary commercial property and casualty insurance coverage to small and mid-sized businesses. In the second quarter of 2013, we formed Berkshire Hathaway Specialty Insurance which concentrates on providing large scale capacity solutions for commercial property and casualty risks.

Premiums earned in the first quarter aggregated $953 million in 2014 and $713 million in 2013. Premium increases were generated by each of our primary insurance businesses. For the first quarter, the BH Primary insurers produced underwriting gains of $99 million in 2014 and $54 million in 2013. The gains reflected a generally favorable claim environment. First quarter loss ratios for the group as whole were 62% in 2014 and 64% in 2013.

28

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

Insurance—Investment Income

A summary of net investment income of our insurance operations follows. Amounts are in millions.

	First Quarter
	2014		2013
Investment income before income taxes and noncontrolling interests	$	946	$	996
Income taxes and noncontrolling interests		226		197
Net investment income	$	720	$	799

Investment income consists of interest and dividends earned on cash and investments of our insurance businesses. Pre-tax investment income in the first quarter of 2014 was $946 million, a decline of $50 million (5%) from 2013. The decline was attributable to lower interest earned from fixed maturity securities and cash and cash equivalents, partially offset by higher dividends earned from equity securities. The reduction in interest income reflected the impact of the maturities and dispositions during 2013 and the first quarter of 2014 of a number of fixed maturity securities with higher yields, including $4.4 billion par amount of Wrigley 11.45% subordinated notes in 2013. We continue to hold significant cash and cash equivalents earning very low yields. However, we believe that maintaining ample liquidity is paramount and we insist on safety over yield with respect to cash and cash equivalents. The increase in dividends earned reflected higher dividend rates for certain of our larger equity holdings as well as increased overall investments in equity securities.

Invested assets derive from shareholder capital and reinvested earnings as well as net liabilities under insurance contracts or “float.” The major components of float are unpaid losses, life, annuity and health benefit liabilities, unearned premiums and other liabilities to policyholders less premiums and reinsurance receivables, deferred charges assumed under retroactive reinsurance contracts and deferred policy acquisition costs. Float approximated $78 billion at March 31, 2014 and $77 billion at December 31, 2013. In the first quarter of 2014, the cost of float, as represented by the ratio of our underwriting gain or loss to average float, was negative as our insurance group generated a net underwriting gain.

A summary of cash and investments held in our insurance businesses follows. Other investments include The Dow Chemical Company convertible preferred stock and Bank of America Corporation preferred stock and common stock warrants. See Note 6 to the Consolidated Financial Statements. Amounts are in millions.

	March 31, 2014		December 31, 2013
Cash and cash equivalents	$	34,204	$	32,572
Equity securities		115,534		114,832
Fixed maturity securities		27,002		27,059
Other		13,259		12,334
	$	189,999	$	186,797

Fixed maturity securities as of March 31, 2014 were as follows. Amounts are in millions.

	Amortized cost		Unrealized gains/losses		Carrying value
U.S. Treasury, U.S. government corporations and agencies	$	2,926	$	9	$	2,935
States, municipalities and political subdivisions		2,074		111		2,185
Foreign governments		10,103		136		10,239
Corporate bonds, investment grade		5,519		575		6,094
Corporate bonds, non-investment grade		3,148		667		3,815
Mortgage-backed securities		1,546		188		1,734
	$	25,316	$	1,686	$	27,002

All U.S. government obligations are rated AA+ or Aaa by the major rating agencies and approximately 86% of all state, municipal and political subdivisions, foreign government obligations and mortgage-backed securities were rated AA or higher. Non-investment grade securities represent securities that are rated below BBB- or Baa3. Foreign government securities include obligations issued or unconditionally guaranteed by national or provincial government entities.

29

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

Railroad (“BNSF”)

Burlington Northern Santa Fe Corporation (“BNSF”) operates one of the largest railroad systems in North America with approximately 32,500 route miles of track in 28 states and two Canadian provinces. BNSF’s major business groups are classified by product/commodity shipped and include consumer products, coal, industrial products and agricultural products. Earnings of BNSF are summarized below (in millions).

	First Quarter
	2014		2013
Revenues	$	5,447	$	5,284
Operating expenses:
Compensation and benefits		1,218		1,139
Fuel		1,159		1,122
Purchased services		653		617
Depreciation and amortization		515		483
Equipment rents, materials and other		537		456
Total operating expenses		4,082		3,817
Interest expense		196		178
		4,278		3,995
Pre-tax earnings		1,169		1,289
Income taxes		445		491
Net earnings	$	724	$	798

Revenues for the first quarter of 2014 were approximately $5.45 billion, an increase of $163 million (3%) over 2013. The overall increase in revenues reflected a 1% increase in cars/units handled and a 2% increase in average revenue per car/unit. In the first quarter of 2014, BNSF’s revenues and earnings were negatively affected by severe weather conditions and service-related challenges, particularly in the Northern U.S service territory. Together, these factors reduced operating efficiencies and gave rise to higher costs for service recovery. Nevertheless, we expect that revenues and earnings over the remainder of 2014 will exceed 2013. In addition, our planned capital investments and new employee hiring in 2014 will expand capacity and allow us to maintain high service levels in the future.

In the first quarter of 2014, revenues from industrial products increased 5% to $1.4 billion reflecting a 1% increase in volume primarily due to petroleum products, while revenues from agricultural products increased 7% to approximately $1.0 billion. These increases were attributable to increased rates and product mix. Coal revenues during the first quarter of 2014 increased 1% to $1.2 billion, reflecting a 4% increase in volume, partially offset by lower rates. Revenues from consumer products during the first quarter of 2014 were $1.7 billion, and were relatively unchanged from 2013.

Operating expenses in the first quarter of 2014 were approximately $4.1 billion, an increase of $265 million (7%) over the first quarter of 2013. Compensation and benefits expenses increased $79 million (7%), primarily due to increased employment levels, and to a lesser extent, wage inflation and higher overtime. Fuel expenses increased $37 million (3%) in 2014 primarily due to lower fuel efficiency, partially offset by lower average fuel prices. In 2014, depreciation and amortization expense increased $32 million (7%) as a result of increased levels of assets in service. In 2014, equipment rent, materials and other expenses increased $81 million (18%) compared to 2013 as a result of higher crew transportation and travel costs, and increased utilities and locomotive materials costs.

Utilities and Energy (“Berkshire Hathaway Energy”)

We hold an 89.8% ownership interest in Berkshire Hathaway Energy Company (“Berkshire Hathaway Energy”), which operates an international energy business. Berkshire Hathaway Energy’s domestic regulated utility interests are currently comprised of four companies, PacifiCorp, MidAmerican Energy Company (“MEC”), as well as Nevada Power Company and Sierra Pacific Power Company (together, “NV Energy”). NV Energy was acquired on December 19, 2013. Berkshire Hathaway Energy also owns two domestic regulated interstate natural gas pipeline companies. In Great Britain, Berkshire Hathaway Energy subsidiaries operate two regulated electricity distribution businesses referred to as Northern Powergrid. The rates that our regulated businesses charge customers for energy and services are based in large part on the costs of business operations, including a return on capital, and are subject to regulatory approval. To the extent these operations are not allowed to include such costs in the approved rates, operating results will be adversely affected. In addition, Berkshire Hathaway Energy also operates a diversified portfolio of independent power projects and the second-largest residential real estate brokerage firm and franchise network in the United States.

30

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

Utilities and Energy (“Berkshire Hathaway Energy”) (Continued)

Revenues and earnings of Berkshire Hathaway Energy are summarized below. Amounts are in millions.

	First Quarter
	Revenues				Earnings
	2014		2013		2014			2013
PacifiCorp	$	1,307	$	1,249	$	223		$	228
MidAmerican Energy Company (“MEC”)		1,244		931		126			76
NV Energy		643		—		43			—
Natural gas pipelines		389		301		214			160
Northern Powergrid		318		300		144			145
Real estate brokerage and other		405		335		(24	)		15
	$	4,306	$	3,116
Earnings before corporate interest and income taxes (“EBIT”)						726			624
Corporate interest						(107	)		(71	)
Income taxes and noncontrolling interests						(116	)		(115	)
Net earnings					$	503		$	438
Net earnings attributable to Berkshire					$	452		$	394

PacifiCorp’s revenues in the first quarter of 2014 were $1.3 billion, an increase of $58 million (5%) over the first quarter of 2013. The increase reflected a $37 million increase in retail revenues, attributable to higher prices, partially offset by a decline in customer load. In 2014, wholesale revenues also increased, reflecting higher rates and volumes. PacifiCorp’s EBIT in the first quarter of 2014 were $223 million, a slight decline from the first quarter of 2013. The increase in revenues was more than offset by increased costs, consisting primarily of energy costs ($52 million) and depreciation and amortization expense ($11 million).

MEC’s revenues in the first quarter of 2014 increased $313 million (34%) to $1,244 million, reflecting increased revenues from regulated natural gas ($196 million), regulated electricity ($35 million) and nonregulated markets ($78 million). The increase in natural gas revenues resulted from higher per-unit natural gas costs, which are recovered from customers via adjustment clauses, and higher volumes attributable to colder weather in 2014. The increase in nonregulated revenues was primarily due to higher natural gas and electricity prices and volumes. MEC’s EBIT in the first quarter of 2014 increased $50 million (66%) to $126 million as compared to 2013. The increase in EBIT was primarily due to increased earnings from regulated electricity, reflecting the impact of higher revenues and lower depreciation and amortization expense, and increased earnings from regulated natural gas as a result of higher sales volumes.

NV Energy was acquired December 19, 2013, and its results are included in our consolidated results beginning as of that date. NV Energy’s revenues and EBIT in the first quarter of 2014 were $643 million and $43 million, respectively. For comparative purposes, NV Energy’s reported revenues and pre-tax earnings for the first quarter of 2013 were approximately $590 million and $33 million, respectively.

Natural gas pipeline revenues and EBIT in the first quarter of 2014 increased $88 million (29%) and $54 million (34%), respectively, compared to 2013. The increases in revenues and EBIT in 2014 reflected increased natural gas volumes and improved margins as a result of significantly colder weather conditions in 2014 in Northern Natural Gas Company’s service territory.

Northern Powergrid’s revenues increased $18 million (6%) in the first quarter of 2014 to $318 million, due mainly to currency exchange rate effects. In 2014, earnings were relatively unchanged compared to the first quarter of 2013. In the first quarter of 2014, revenues of the real estate brokerage and other businesses increased $70 million (21%) over 2013, reflecting a 27% increase in brokerage revenues. Real estate brokerage and other businesses generated a pre-tax loss of $24 million in the first quarter of 2014. In 2014, increased operating costs related to the real estate brokerage business (particularly employment and marketing and promotional costs) and increased interest and other expenses associated with the renewable energy generation facilities more than offset the increase in first quarter revenues.

31

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

Utilities and Energy (“Berkshire Hathaway Energy”) (Continued)

Corporate interest includes interest on the unsecured debt issued by Berkshire Hathaway Energy Company. In 2014, corporate interest expense increased due to new borrowings in connection with the NV Energy acquisition, including borrowings from certain Berkshire insurance subsidiaries.

Berkshire Hathaway Energy’s consolidated income tax expense as percentage of pre-tax earnings for the first quarter was 18% in 2014 and 20% in 2013. In each year, Berkshire Hathaway Energy’s utility subsidiaries effective income tax rates reflect significant production tax credits from wind-powered electricity generation placed in service. In addition, pre-tax earnings of Northern Powergrid are taxed at lower statutory rates in the U.K. compared to the statutory tax rate in the U.S.

Manufacturing, Service and Retailing

A summary of revenues and earnings of our manufacturing, service and retailing businesses follows. Amounts are in millions.

	First Quarter
	Revenues				Earnings
	2014		2013		2014		2013
McLane Company	$	10,454	$	10,785	$	115	$	132
Manufacturing		8,641		8,161		1,068		948
Service		2,388		2,104		243		209
Retailing		970		987		44		73
	$	22,453	$	22,037
Pre-tax earnings						1,470		1,362
Income taxes and noncontrolling interests						537		500
					$	933	$	862

McLane Company

Through McLane, we operate a wholesale distribution business that provides grocery and non-food products to retailers, convenience stores and restaurants. Through its subsidiaries, McLane also operates as a wholesale distributor of distilled spirits, wine and beer. McLane’s grocery and foodservice businesses are marked by high sales volume and very low profit margins and have several significant customers, including Wal-Mart, 7-Eleven and Yum! Brands. A curtailment of purchasing by Wal-Mart or another of its significant customers could have a material adverse impact on McLane’s periodic revenues and earnings.

Revenues for the first quarter of 2014 were $10.45 billion, a decrease of $331 million (3%) compared to the first quarter of 2013. McLane’s businesses operate on a 52/53 week fiscal year. As a result, McLane’s first quarter in 2014 was one week shorter than in 2013. Pre-tax earnings in the first quarter of 2014 were $115 million, a decrease of $17 million (13%) from 2013. The decline in pre-tax earnings in 2014 was primarily attributable to fewer days in 2014 and comparatively lower gains in 2014 than 2013 from LIFO inventory reserve changes. McLane’s overall net operating margins before the LIFO effects in 2014 increased slightly compared to 2013.

Manufacturing

Included in this group are a variety of businesses that manufacture industrial and end-user products and include: Lubrizol Corporation (“Lubrizol”), a specialty chemical manufacturer, IMC International Metalworking Companies (“Iscar”), an industry leader in the metal cutting tools business with operations worldwide, Forest River, a leading manufacturer of leisure vehicles and CTB, a manufacturer of equipment and systems for the livestock and agricultural industries. Also included are the diversified manufacturing operations of Marmon, which were previously presented separately, together with its transportation equipment manufacturing, repair and leasing operations. In this report, Marmon’s transportation equipment manufacturing, repair and leasing businesses are included in our finance and financial products group. Our manufacturing businesses also include several building products businesses (Acme Building Brands, Benjamin Moore, Johns Manville, Shaw and MiTek) and six apparel businesses (led by Fruit of the Loom which includes Russell athletic apparel and Vanity Fair Brands women’s intimate apparel).

32

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

Manufacturing, Service and Retailing (Continued)

Manufacturing (Continued)

Revenues and pre-tax earnings of our manufacturing businesses are summarized as follows (in millions).

	First Quarter
	Revenues				Earnings
	2014		2013		2014		2013
Industrial and end-user products	$	5,364	$	4,971	$	818	$	721
Building products		2,233		2,150		145		140
Apparel		1,044		1,040		105		87
	$	8,641	$	8,161	$	1,068	$	948

Aggregate revenues in the first quarter of 2014 from manufacturing increased $480 million (5.9%) to $8.6 billion. Pre-tax earnings of our manufacturing businesses in 2014 were $1.07 billion, an increase of $120 million (12.7%) versus 2013.

Revenues from our industrial and end-user products businesses increased $393 million (8%) in the first quarter of 2014 as compared to 2013 and earnings from these businesses increased $97 million (13%). Lubrizol’s revenues in the first quarter of 2014 increased 9% to $1.7 billion, reflecting the impact of bolt-on acquisitions and increased unit volume. Lubrizol’s earnings in the first quarter of 2014 were relatively unchanged as lower gross sales margins substantially offset the impact of increased revenues. Forest River’s revenues increased 17% to $910 million, while earnings increased 52% over 2013, due primarily to increased unit sales and lower material costs. In the first quarter, Iscar’s earnings increased 39%, reflecting the impact of a 6% increase in sales, as well as increased gross margins and favorable currency exchange movements.

In the first quarter of 2014, Marmon’s manufacturing revenues increased 7% over 2013 to $1.4 billion. The increase in revenues was primarily due to the impact of the acquisition of a beverage dispensing and merchandising business at the beginning of 2014, partially offset by lower revenues from the electrical and plumbing products distribution businesses, which was attributable to lower copper prices and the effects of adverse winter weather. Pre-tax earnings in the first quarter of 2014 from Marmon’s manufacturing businesses increased $6 million (4%) over 2013. Earnings in 2014 reflected the favorable impact of the beverage dispensing acquisition, partially offset by lower earnings from certain of Marmon’s engineered wire and cable, retail products and retail store fixtures businesses.

Revenues in the first quarter of 2014 from our building products businesses were $2.23 billion, an increase of 4% over 2013. Over half of the revenue increase in 2014 was attributable to bolt-on acquisitions. Pre-tax earnings from building products in the first quarter of 2014 increased 3.6% over 2013. Adverse winter weather in the U.S. in the first quarter of 2014 had a negative impact on revenues and earnings of certain of our building products businesses.

Apparel revenues in 2014 were $1.04 billion, which were relatively unchanged from 2013, while earnings increased $18 million (21%) over 2013. The overall increase in earnings was primarily attributable to Fruit of the Loom, Brooks Sports and Garan, and reflected comparatively lower manufacturing costs and selling, general and administrative expenses.

Service

Our service businesses include NetJets, the world’s leading provider of fractional ownership programs for general aviation aircraft and FlightSafety, a provider of high technology training to operators of aircraft. Among the other businesses included in this group are: TTI, a leading electronic components distributor; Business Wire, a leading distributor of corporate news, multimedia and regulatory filings; Dairy Queen, which licenses and services a system of over 6,300 stores that offer prepared dairy treats and food; Buffalo News and the BH Media Group, which includes the Omaha World-Herald, as well as 29 other daily newspapers and numerous other publications; and businesses that provide management and other services to insurance companies.

Revenues of our service businesses in the first quarter of 2014 were $2.4 billion, an increase of $284 million (13.5%) compared to 2013. In the first quarter of 2014, revenue increases were produced by NetJets (12%), TTI (16%), FlightSafety (14%) and BH Media (30%). In 2014, the revenue increase at NetJets reflected increased sales of fractional aircraft and flight services revenues, which was attributable to increased flight hours and, to a lesser degree, rates. TTI’s revenue increase was driven by higher unit volume and FlightSafety’s increase was primarily due to increased simulator training activity. The increase in BH Media revenues in 2014 was primarily due to bolt-on business acquisitions in 2013.

33

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

Manufacturing, Service and Retailing (Continued)

Service (Continued)

Pre-tax earnings of our service businesses in the first quarter of 2014 were $243 million, an increase of $34 million (16%) versus 2013. The increase reflected increased earnings from BH Media Group, FlightSafety and TTI, partially offset by slightly lower earnings from NetJets. The increases in earnings of FlightSafety, BH Media and TTI were primarily due to the aforementioned increases in revenues. NetJets’ earnings were negatively impacted by increased aircraft impairment charges, depreciation expense, maintenance costs and subcontracted flight expenses.

Retailing

Our retailing operations consist of four home furnishings businesses (Nebraska Furniture Mart, R.C. Willey, Star Furniture and Jordan’s), three jewelry businesses (Borsheims, Helzberg and Ben Bridge), See’s Candies, Pampered Chef, a direct seller of high quality kitchen tools and Oriental Trading Company (“OTC”), a direct retailer of party supplies, school supplies and toys and novelties. Revenues and pre-tax earnings in the first quarter of 2014 from the retailing businesses declined $17 million (2%) and $29 million (40%), respectively, compared to the first quarter of 2013. Lower comparative earnings were generated in 2014 by several of our retailers, most notably See’s Candies, which was due to the timing of Easter.

Finance and Financial Products

Our finance and financial products businesses include manufactured housing and finance (Clayton Homes), transportation equipment manufacturing, repair and leasing businesses (Marmon and XTRA), as well as other leasing and financing activities. Marmon manufactures, owns and leases railcars and intermodal tank cars, and also owns and leases cranes, while XTRA owns and leases over-the-road trailers. A summary of earnings from these businesses follows. Amounts are in millions.

	First Quarter
	2014		2013
Manufactured housing and finance	$	115	$	71
Transportation equipment manufacturing, repair and leasing		182		148
Other		75		77
Pre-tax earnings		372		296
Income taxes and noncontrolling interests		134		105
	$	238	$	191

Clayton Homes’ earnings were $115 million for the first quarter of 2014, an increase of $44 million (62%) compared to 2013. In the first quarter of 2014, the earnings benefitted from lower loan loss provisions and lower interest expense, which was primarily due to lower rates. Clayton Homes’ manufactured housing business continues to operate at a competitive disadvantage compared to traditional single family housing markets, which receive significant interest rate subsidies from the U.S. government through government agency insured mortgages. For the most part, these subsidies are not available to factory built homes. Nevertheless, Clayton Homes remains the largest manufactured housing business in the United States and we believe that it will continue to operate profitably, even under the prevailing conditions.

Earnings in the first quarter of 2014 from our transportation equipment manufacturing, repair and leasing businesses were $182 million, an increase of $34 million (23%) over the first quarter of 2013. The increase in earnings reflected a 10% increase in lease revenues, reflecting increased units on lease and higher lease rates. A significant portion of the costs of these businesses are fixed, so changes in revenues can have a disproportionate effect on earnings.

Earnings from our other finance activities include CORT’s furniture leasing business, interest and dividends from a portfolio of investments and our share of the earnings of a commercial mortgage servicing business in which we own a 50% joint venture interest. In addition, other earnings includes income from interest rate spreads charged to Clayton Homes on borrowings by a Berkshire financing subsidiary that are used to fund loans to Clayton Homes and guaranty fees charged to NetJets. Corresponding expenses are included in Clayton Homes’ and NetJets’ results. Guaranty fees and interest spreads charged to NetJets and Clayton Homes aggregated $18 million in the first quarter of 2014 and $24 million in the first quarter of 2013.

34

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

Investment and Derivative Gains/Losses

A summary of investment and derivative gains and losses and other-than-temporary impairments on investments follows. Amounts are in millions.

	First Quarter
	2014			2013
Investment gains/losses	$	1,150		$	590
Other-than-temporary impairments		(19	)		(85)
Derivative gains/losses		236			1,206
Gains/losses before income taxes and noncontrolling interests		1,367			1,711
Income taxes and noncontrolling interests		195			601
Net gains/losses	$	1,172		$	1,110

Investment gains/losses arise primarily from the sale or redemption of investments or when investments are carried at fair value with the periodic changes in fair values recorded in earnings. The timing of investment gains or losses can have a material effect on periodic earnings. Investment gains and losses usually have a minimal impact on the periodic changes in our consolidated shareholders’ equity since most of our investments are regularly recorded at fair value with the unrealized gains and losses included in shareholders’ equity as a component of accumulated other comprehensive income.

We believe the amount of investment gains/losses included in earnings in any given period typically has little analytical or predictive value. Our decisions to sell securities are not motivated by the impact that the resulting gains or losses will have on our reported earnings. Although our management does not consider investment gains and losses in a given period as necessarily meaningful or useful in evaluating periodic earnings, we are providing information to explain the nature of such gains and losses when they are reflected in earnings.

Pre-tax investment gains in the first quarter were $1,150 million in 2014 and $590 million in 2013. Investment gains in the first quarter of 2014 included a non-cash, pre-tax holding gain of $949 million realized in connection with the exchange of shares of Phillips 66 common stock for 100% of the common stock of a specialty chemical products subsidiary of Phillips 66. The exchange transaction was structured as a tax-free reorganization under the Internal Revenue Code. As a result, no income taxes were provided on the excess of the fair value of the Phillips 66 shares exchanged and the tax-basis cost of those shares. The gains in 2013 included $520 million related to our investments in General Electric and Goldman Sachs common stock warrants, which beginning in 2013 were carried at fair value with the unrealized gain or loss included in earnings. These warrants were exercised during the fourth quarter of 2013.

Other-than-temporary impairment (“OTTI”) charges in the first quarter of 2014 were not significant and in 2013 related to our investments in Texas Competitive Electric Holdings bonds. Although we have periodically recorded OTTI charges in earnings in the past, we continue to hold positions in certain of those securities. In cases where the market values of these investments have increased since the dates the OTTI charges were recorded in earnings, the related gains are not reflected in earnings but are instead included in shareholders’ equity as a component of accumulated other comprehensive income. When recorded, OTTI charges have no impact whatsoever on the asset values otherwise recorded in our Consolidated Balance Sheets or on our consolidated shareholders’ equity as those investments were carried at fair value on a recurring basis. In addition, the recognition of such losses in earnings rather than in accumulated other comprehensive income does not necessarily indicate that sales are imminent or planned and sales ultimately may not occur for a number of years. Furthermore, the recognition of OTTI charges does not necessarily indicate that the loss in value of the security is permanent or that the market price of the security will not subsequently increase to and ultimately exceed our original cost.

As of March 31, 2014, consolidated gross unrealized losses on our investments in equity and fixed maturity securities determined on an individual purchase lot basis were $388 million. We concluded that as of that date, such losses were not other than temporary. We consider several factors in determining whether or not impairments are deemed to be other than temporary, including the current and expected long-term business prospects and if applicable, the creditworthiness of the issuer, our ability and intent to hold the investment until the price recovers and the length of time and relative magnitude of the price decline.

Derivative gains/losses primarily represent the changes in fair value of our credit default and equity index put option contracts. Periodic changes in the fair values of these contracts are reflected in earnings and can be significant, reflecting the volatility of underlying credit and equity markets.

35

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

Investment and Derivative Gains/Losses (Continued)

In the first quarter of 2014, derivative contracts produced a pre-tax gain of $236 million, which reflected a gain from credit default exposures, partially offset by losses under the equity index put option contracts. In the first quarter of 2013, our derivative contracts generated pre-tax gains of $1,206 million, which were primarily attributed to changes in fair values of our equity index put option contracts.

In the first quarter of 2014, our equity index put option contracts produced losses of $132 million compared to gains of $1,246 million in the first quarter of 2013. In 2014, the losses were primarily attributed to lower interest rate assumptions. In 2013, the gains reflected higher equity prices and the favorable foreign currency exchange rate movements from effects of a stronger U.S. Dollar. In the first quarter, our credit default contract generated a pre-tax gain of $373 million in 2014 and a loss of $14 million in 2013. Our credit default contract exposures currently relate to municipality/state issuers.

Other

Other sources of after-tax earnings in the first quarter of 2014 included earnings of $177 million related to Berkshire’s investments in Heinz Holding which were made in June 2013. Also included in other earnings during both the first quarters of 2014 and 2013 are purchase accounting adjustments with respect to several prior business acquisitions that are primarily related to the amortization of identifiable intangibles and corporate interest expense. In the aggregate these two items were approximately $155 million in 2014 and $157 million in 2013.

Financial Condition

Our balance sheet continues to reflect significant liquidity and a strong capital base. Our consolidated shareholders’ equity at March 31, 2014 was $227.6 billion, an increase of $5.7 billion since December 31, 2013. Consolidated cash and investments of our insurance and other businesses approximated $200.7 billion (excludes our investments in H.J. Heinz Holding Corporation) at March 31, 2014, and included cash and cash equivalents of $42.2 billion. As of March 31, 2014, our insurance subsidiaries held approximately $190.0 billion in cash and investments.

Berkshire Hathaway parent company borrowings include $8.0 billion of senior notes, of which $750 million mature in August 2014 and an additional $1.7 billion mature in February 2015. It is currently anticipated that we will issue new senior notes to replace some or all of the upcoming maturities. During the first quarter of 2014, Berkshire paid approximately $1.2 billion as final payment in connection with our acquisition of substantially all the outstanding shares held by Marmon non-controlling shareholders at December 31, 2013.

Berkshire’s Board of Directors has authorized Berkshire to repurchase its Class A and Class B common shares at prices no higher than a 20% premium over the book value of the shares. Berkshire may repurchase shares at management’s discretion. The repurchase program is expected to continue indefinitely, but does not obligate Berkshire to repurchase any dollar amount or number of Class A or Class B common shares. Repurchases will not be made if they would reduce Berkshire’s consolidated cash and cash equivalent holdings below $20 billion. Financial strength and redundant liquidity will always be of paramount importance at Berkshire. There were no share repurchases during the first quarter of 2014.

Our railroad, utilities and energy businesses (conducted by BNSF and Berkshire Hathaway Energy) maintain very large investments in capital assets (property, plant and equipment) and will regularly make capital expenditures in the normal course of business. In the first quarter of 2014, aggregate capital expenditures of these businesses were approximately $2.1 billion, including $1.2 billion by Berkshire Hathaway Energy and $0.9 billion by BNSF. BNSF and Berkshire Hathaway Energy forecast aggregate capital expenditures of approximately $8.9 billion over the remainder of 2014. Future capital expenditures are expected to be funded from cash flows from operations and debt issuances.

In March 2014, BNSF issued $500 million of 3.75% debentures due in 2024 and $1.0 billion of 4.9% debentures due in 2044. BNSF’s outstanding debt was $17.95 billion as of March 31, 2014. In the first quarter of 2014, Berkshire Hathaway Energy subsidiaries issued term debt of $425 million and its aggregate outstanding borrowings were $29.8 billion as of March 31, 2014. BNSF and Berkshire Hathaway Energy have aggregate debt and capital lease maturities over the remainder of 2014 of about $1.0 billion. Berkshire’s commitment to provide up to $2 billion of additional capital to Berkshire Hathaway Energy to permit the repayment of its debt obligations or to fund its regulated utility subsidiaries expired on February 28, 2014. Berkshire does not guarantee the repayment of debt issued by BNSF, Berkshire Hathaway Energy or any of their subsidiaries.

36

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

Financial Condition (Continued)

Assets of the finance and financial products businesses, which consisted primarily of loans and finance receivables, cash and cash equivalents, a portfolio of fixed maturity investments and equity investments and a sizable portfolio of assets held for lease, consisting of various types of transportation equipment and furniture. Finance and financial products assets were approximately $33.7 billion as of March 31, 2014 and $33.2 billion as of December 31, 2013. Liabilities were $19.5 billion as of March 31, 2014 and $19.8 billion as of December 31, 2013, which included notes payable and other borrowings of $13.0 billion and $13.1 billion, respectively. As of March 31, 2014, notes payable included approximately $11.2 billion of notes issued by Berkshire Hathaway Finance Corporation (“BHFC”). In January 2014, $750 million of BHFC senior notes matured and BHFC issued $750 million of new senior notes to replace maturing notes. The new senior notes consisted of $650 million of floating rate notes due in 2017 and $100 million of 2% notes due in 2018. An additional $400 million of BHFC debt will mature in July 2014 and $1.0 billion will mature in January 2015. We currently intend to issue additional new debt through BHFC to replace some or all of the upcoming debt maturities. The proceeds from the BHFC notes are used to finance originated loans and acquired loans of Clayton Homes. The full and timely payment of principal and interest on the BHFC notes is guaranteed by Berkshire. We also currently intend to issue new debt to support our Marmon leasing operations.

We regularly access the credit markets, particularly through our railroad, utilities and energy and finance and financial products businesses. Restricted access to credit markets at affordable rates in the future could have a significant negative impact on our operations.

As described in Note 13 to the Consolidated Financial Statements, we are party to equity index put option and credit default contracts. With limited exception, these contracts contain no collateral posting requirements under any circumstances, including changes in either the fair value or intrinsic value of the contracts or a downgrade in Berkshire’s credit ratings. At March 31, 2014, the liabilities recorded for such contracts were approximately $5.1 billion and we had no collateral posting requirements.

In 2010, the Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Reform Act”) was signed into law. The Reform Act reshapes financial regulations in the United States by creating new regulators, regulating new markets and market participants and providing new enforcement powers to regulators. Virtually all major areas of the Reform Act have been subject to extensive rulemaking proceedings being conducted both jointly and independently by multiple regulatory agencies, some of which have been completed and others that are expected to be finalized during the next several months. Although the Reform Act may adversely affect some of our business activities, it is not currently expected to have a material impact on our consolidated financial results or financial condition.

Contractual Obligations

We are party to contracts associated with ongoing business and financing activities, which will result in cash payments to counterparties in future periods. Certain obligations reflected in our Consolidated Balance Sheets, such as notes payable, require future payments on contractually specified dates and in fixed and determinable amounts, while others (including unpaid loss and loss adjustment expenses and life, annuity and health benefit liabilities assumed under insurance contracts) are contingent upon the outcome of future events. Actual payments will likely vary, perhaps significantly, from the liability estimates currently recorded in the Consolidated Balance Sheets. Other obligations, such as minimum rentals under operating leases, pertain to the acquisition of goods or services in the future and are not currently reflected in the financial statements. Such obligations will be reflected in future periods as the goods are delivered or services provided. Our contractual obligations as of March 31, 2014 were, in the aggregate, not materially different from those disclosed in the “Contractual Obligations” section of “Management’s Discussion and Analysis of Financial Condition and Results of Operations” contained in Berkshire’s Annual Report on Form 10-K for the year ended December 31, 2013.

Critical Accounting Policies

We are party to contracts associated with ongoing business and financing activities, which will result in cash payments to counterparties in future periods. Certain accounting policies require us to make estimates and judgments regarding transactions that have occurred and ultimately will be settled several years in the future or concerning the recoverability of assets. Amounts recognized in the financial statements from such estimates are necessarily based on assumptions about numerous factors involving varying, and possibly significant, degrees of judgment and uncertainty. Accordingly, the amounts currently recorded in the financial statements may prove, with the benefit of hindsight, to be inaccurate. Reference is made to “Critical Accounting Policies” discussed in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included in Berkshire’s Annual Report on Form 10-K for the year ended December 31, 2013 for additional discussion regarding these estimates.

37

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations (Continued)

Critical Accounting Policies (Continued)

Our Consolidated Balance Sheet as of March 31, 2014 includes estimated liabilities for unpaid losses from property and casualty insurance and reinsurance contracts of $65.4 billion. Due to the inherent uncertainties in the process of establishing loss reserve amounts, the actual ultimate claim amounts will likely differ from the currently recorded amounts. A very small percentage change in estimates of this magnitude will result in a material effect on reported earnings. The effects from changes in these estimates are recorded as a component of losses incurred in the period of the change.

Our Consolidated Balance Sheet as of March 31, 2014 includes goodwill of acquired businesses of $58.3 billion. We evaluate goodwill for impairment at least annually and conducted our most recent annual review during the fourth quarter of 2013. Although we believe that the goodwill reflected in the Consolidated Balance Sheet as of March 31, 2014 is not impaired, goodwill may subsequently become impaired as a result of changes in facts and circumstances affecting the valuation of the reporting unit. A goodwill impairment charge could have a material effect on periodic net earnings.

Our Consolidated Balance Sheets include significant amounts of derivative contract liabilities that are measured at fair value. As of March 31, 2014 our most significant derivative contract exposures relate to equity index put option contracts written between 2004 and 2008. These contracts were entered into in over-the-counter markets and certain elements in the terms and conditions of such contracts are not standard. In particular, we are not required to post collateral under most of our contracts. Furthermore, there is no source of independent data available to us showing trading volume and actual prices of completed transactions. As a result, the values of these liabilities are based on valuation models that are believed to be used by market participants. Such models or other valuation techniques may use inputs that are observable in the marketplace, while others are unobservable. Unobservable inputs require us to make certain projections and assumptions about the information that would be used by market participants in establishing prices. Changes in assumptions may have a significant effect on values.

Information concerning new accounting pronouncements is included in Note 2 to the accompanying Consolidated Financial Statements.

Forward-Looking Statements

Investors are cautioned that certain statements contained in this document as well as some statements in periodic press releases and some oral statements of Berkshire officials during presentations about Berkshire or its subsidiaries are “forward-looking” statements within the meaning of the Private Securities Litigation Reform Act of 1995 (the “Act”). Forward-looking statements include statements which are predictive in nature, which depend upon or refer to future events or conditions, which include words such as “expects,” “anticipates,” “intends,” “plans,” “believes,” “estimates” or similar expressions. In addition, any statements concerning future financial performance (including future revenues, earnings or growth rates), ongoing business strategies or prospects and possible future Berkshire actions, which may be provided by management, are also forward-looking statements as defined by the Act. Forward-looking statements are based on current expectations and projections about future events and are subject to risks, uncertainties and assumptions about Berkshire and its subsidiaries, economic and market factors and the industries in which we do business, among other things. These statements are not guaranties of future performance and we have no specific intention to update these statements.

Actual events and results may differ materially from those expressed or forecasted in forward-looking statements due to a number of factors. The principal important risk factors that could cause our actual performance and future events and actions to differ materially from such forward-looking statements include, but are not limited to, changes in market prices of our investments in fixed maturity and equity securities, losses realized from derivative contracts, the occurrence of one or more catastrophic events, such as an earthquake, hurricane or act of terrorism that causes losses insured by our insurance subsidiaries, changes in laws or regulations affecting our insurance, railroad, utilities and energy or finance subsidiaries, changes in federal income tax laws, and changes in general economic and market factors that affect the prices of securities or the industries in which we do business.

38

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Reference is made to Berkshire’s most recently issued Annual Report and in particular the “Market Risk Disclosures” included in “Management’s Discussion and Analysis of Financial Condition and Results of Operations.” As of March 31, 2014, there were no material changes in the market risks described in Berkshire’s Annual Report on Form 10-K for the year ended December 31, 2013.

Item 4. Controls and Procedures

As of the end of the period covered by this Quarterly Report on Form 10-Q, the Corporation carried out an evaluation, under the supervision and with the participation of the Corporation’s management, including the Chairman (Chief Executive Officer) and the Senior Vice President (Chief Financial Officer), of the effectiveness of the design and operation of the Corporation’s disclosure controls and procedures pursuant to Exchange Act Rule 13a-15. Based upon that evaluation, the Chairman (Chief Executive Officer) and the Senior Vice President (Chief Financial Officer) concluded that the Corporation’s disclosure controls and procedures are effective in timely alerting them to material information relating to the Corporation (including its consolidated subsidiaries) required to be included in the Corporation’s periodic SEC filings. During the quarter, there have been no significant changes in the Corporation’s internal control over financial reporting or in other factors that could significantly affect internal control over financial reporting.

39

Part II Other Information

Item 1. Legal Proceedings

We are party in a variety of legal actions arising out of the normal course of business. In particular, such legal actions affect our insurance and reinsurance businesses. Such litigation generally seeks to establish liability directly through insurance contracts or indirectly through reinsurance contracts issued by Berkshire subsidiaries. Plaintiffs occasionally seek punitive or exemplary damages. We do not believe that such normal and routine litigation will have a material effect on our financial condition or results of operations.

Item 1A. Risk Factors

Our significant business risks are described in Item 1A to Form 10-K for the year ended December 31, 2013 to which reference is made herein.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds and Issuer Repurchases of Equity Securities

In September 2011, Berkshire’s Board of Directors (“Berkshire’s Board”) approved a common stock repurchase program under which Berkshire may repurchase its Class A and Class B shares at prices no higher than a 10% premium over the book value of the shares. In December 2012, Berkshire’s Board amended the repurchase program by raising the price limit to no higher than a 20% premium over book value. Berkshire may repurchase shares in the open market or through privately negotiated transactions. Berkshire’s Board authorization does not specify a maximum number of shares to be repurchased. However, repurchases will not be made if they would reduce Berkshire’s consolidated cash equivalent holdings below $20 billion. The repurchase program is expected to continue indefinitely and the amount of repurchases will depend entirely upon the level of cash available, the attractiveness of investment and business opportunities either at hand or on the horizon, and the degree of discount of the market price relative to management’s estimate of intrinsic value. The repurchase program does not obligate Berkshire to repurchase any dollar amount or number of Class A or Class B shares and there is no expiration date to the program. There were no share repurchases in the first three months of 2014.

Item 3. Defaults Upon Senior Securities

None

Item 4. Mine Safety Disclosures

Information regarding the Company’s mine safety violations and other legal matters disclosed in accordance with Section 1503(a) of the Dodd-Frank Reform Act is included in Exhibit 95 to this Form 10-Q.

Item 5. Other Information

None

Item 6. Exhibits

a. Exhibits

12	Calculation of Ratio of Consolidated Earnings to Consolidated Fixed Charges
31.1	Rule 13a-14(a)/15d-14(a) Certifications
31.2	Rule 13a-14(a)/15d-14(a) Certifications
32.1	Section 1350 Certifications
32.2	Section 1350 Certifications
95	Mine Safety Disclosures
101	The following financial information from Berkshire Hathaway Inc.’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2014, formatted in XBRL (Extensible Business Reporting Language) includes: (i) the Consolidated Balance Sheets as of March 31, 2014 and December 31, 2013, (ii) the Consolidated Statements of Earnings for each of the three-month periods ended March 31, 2014 and 2013, (iii) the Consolidated Statements of Comprehensive Income for each of the three-month periods ended March 31, 2014 and 2013, (iv) the Consolidated Statements of Changes in Shareholders’ Equity for each of the three-month periods ended March 31, 2014 and 2013, (v) the Consolidated Statements of Cash Flows for each of the three-month periods ended March 31, 2014 and 2013, and (vi) the Notes to Consolidated Financial Statements, tagged in summary and detail.

40

SIGNATURE

Pursuant to the requirement of the Securities Exchange Act of 1934, the Registrant has duly caused this Report to be signed on its behalf by the undersigned thereunto duly authorized.

	BERKSHIRE HATHAWAY INC. (Registrant)
Date: May 2, 2014	/S/ MARC D. HAMBURG
	(Signature) Marc D. Hamburg, Senior Vice President and Principal Financial Officer

41

EX-12

Exhibit 12

BERKSHIRE HATHAWAY INC.

Calculation of Ratio of Consolidated Earnings to Consolidated Fixed Charges

(Dollars in millions)

	Three Months Ended March 31, 2014				Year Ended December 31,
					2013		2012		2011		2010			2009
Net earnings attributable to Berkshire Hathaway shareholders		$	4,705		$	19,476	$	14,824	$	10,254	$	12,967		$	8,055
Income tax expense			1,825			8,951		6,924		4,568		5,607			3,538
Earnings attributable to noncontrolling interests			68			369		488		492		527			386
(Earnings) loss from equity method investments			(8	)		255		—		—		(50	)		(427	)
Dividends from equity method investments			—			—		—		—		20			132
Fixed charges			936			3,386		3,304		3,219		3,084			2,279
Earnings available for fixed charges		$	7,526		$	32,437	$	25,540	$	18,533	$	22,155		$	13,963
Fixed charges
Interest on indebtedness (including amortization of debt discount and expense)		$	782		$	2,801	$	2,744	$	2,664	$	2,558		$	1,992
Rentals representing interest and other			154			585		560		555		526			287
		$	936		$	3,386	$	3,304	$	3,219	$	3,084		$	2,279
Ratio of earnings to fixed charges			8.04x			9.58x		7.73x		5.76x		7.18x			6.13x

EX-31.1

EXHIBIT 31.1

Quarter ended March 31, 2014

Rule 13a-14(a)/15d-14(a) Certifications

CERTIFICATIONS

I, Warren E. Buffett, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Berkshire Hathaway Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 2, 2014

/S/ WARREN E. BUFFETT

Chairman—Principal Executive Officer

EX-31.2

EXHIBIT 31.2

Quarter ended March 31, 2014

Rule 13a-14(a)/15d-14(a) Certifications

CERTIFICATIONS

I, Marc D. Hamburg, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Berkshire Hathaway Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 2, 2014

/S/ MARC D. HAMBURG

Senior Vice President—Principal Financial Officer

EX-32.1

EXHIBIT 32.1

Section 1350 Certifications

Quarter ended March 31, 2014

I, Warren E. Buffett, Chairman and Chief Executive Officer of Berkshire Hathaway Inc. (the “Company”), certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that to the best of my knowledge:

(1) the Quarterly Report on Form 10-Q of the Company for the period ended March 31, 2014 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: May 2, 2014

/S/ WARREN E. BUFFETT

Warren E. Buffett

Chairman and Chief Executive Officer

EX-32.2

EXHIBIT 32.2

Section 1350 Certifications

Quarter ended March 31, 2014

I, Marc D. Hamburg, Senior Vice President and Chief Financial Officer of Berkshire Hathaway Inc. (the “Company”), certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that to the best of my knowledge:

(1) the Quarterly Report on Form 10-Q of the Company for the period ended March 31, 2014 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: May 2, 2014

/S/ MARC D. HAMBURG

Marc D. Hamburg

Senior Vice President and Chief Financial Officer

EX-95

EXHIBIT 95

MINE SAFETY VIOLATIONS AND OTHER LEGAL MATTER DISCLOSURES

PURSUANT TO SECTION 1503(a) OF THE DODD-FRANK WALL STREET

REFORM AND CONSUMER PROTECTION ACT

PacifiCorp and its subsidiaries operate coal mines and coal processing facilities and Acme Brick and its affiliates operate clay, shale and limestone excavation facilities (collectively, the “mining facilities”) that are regulated by the Federal Mine Safety and Health Administration (“MSHA”) under the Federal Mine Safety and Health Act of 1977 (the “Mine Safety Act”). MSHA inspects mining facilities on a regular basis. The total number of reportable Mine Safety Act citations, orders, assessments and legal actions for the three-month period ended March 31, 2014 are summarized in the table below and are subject to contest and appeal. The severity and assessment of penalties may be reduced or, in some cases, dismissed through the contest and appeal process. Amounts are reported regardless of whether PacifiCorp or Acme has challenged or appealed the matter. Coal, clay and other reserves that are not yet mined and mines that are closed or idled are not included in the information below as no reportable events occurred at those locations during the three-month period ended March 31, 2014. PacifiCorp and Acme have not received any notice of a pattern, or notice of the potential to have a pattern, of violations of mandatory health or safety standards that are of such nature as could have significantly and substantially contributed to the cause and effect of coal or other mine health or safety hazards under Section 104(e) of the Mine Safety Act during the three-month period ended March 31, 2014.

	Mine Safety Act										Total Value of Proposed MSHA Assessments (in thousands)		Total Number of Mining Related Fatalities		Legal Actions
Mining Facilities	Section 104 Significant and Substantial Citations(1)		Section 104(b) Orders(2)		Section 104(d) Citations/ Orders(3)		Section 110(b)(2) Violations(4)		Section 107(a) Imminent Danger Orders(5)						Pending as of Last Day of Period(6)		Instituted During Period		Resolved During Period
Coal:
Deer Creek		8		—		—		—		—	$	13		—		10		1		—
Bridger (surface)		—		—		—		—		—		—		—		3		—		1
Bridger (underground)		7		—		1		—		1		13		—		12		6		5
Cottonwood Preparatory Plant		—		—		—		—		—		—		—		—		—		—
Wyodak Coal Crushing Facility		—		—		—		—		—		—		—		—		—		—
Clay, shale and limestone:
Minnesota		—		—		—		—		—		—		—		—		—		—
Malvern		1		—		—		—		—		—		—		—		—		—
Wheeler		—		—		—		—		—		—		—		—		—		—
Eureka		—		—		—		—		—		—		—		—		—		—
Fort Smith		—		—		—		—		—		—		—		—		—		—
Kanopolis		—		—		—		—		—		—		—		—		—		—
Oklahoma City		—		—		—		—		—		—		—		—		—		—
Tulsa		—		—		—		—		—		—		—		—		—		—
Denver		—		—		—		—		—		—		—		—		—		—
Bennett		—		—		—		—		—		—		—		—		—		—
Denton		—		—		—		—		—		—		—		—		—		—
Elgin		—		—		—		—		—		—		—		—		—		—
McQueeney		—		—		—		—		—		—		—		—		—		—
Garrison		—		—		—		—		—		—		—		—		—		—
Sealy		—		—		—		—		—		—		—		—		—		—
Texas Clay		—		—		—		—		—		—		—		—		—		—
Leeds		—		—		—		—		—		—		—		—		—		—
Montgomery		—		—		—		—		—		—		—		—		—		—
Lueders		—		—		—		—		—		—		—		—		—		—
Cordova		—		—		—		—		—		—		—		—		—		—

(1) Citations for alleged violations of mandatory health and safety standards that could significantly or substantially contribute to the cause and effect of a safety or health hazard under Section 104 of the Mine Safety Act.

(2) For alleged failure to totally abate the subject matter of a Mine Safety Act Section 104(a) citation within the period specified in the citation.

(3) For alleged unwarrantable failure (i.e., aggravated conduct constituting more than ordinary negligence) to comply with a mandatory health or safety standard.

(4) For alleged flagrant violations (i.e., reckless or repeated failure to make reasonable efforts to eliminate a known violation of a mandatory health or safety standard that substantially and proximately caused, or reasonably could have been expected to cause, death or serious bodily injury).

(5) For the existence of any condition or practice in a coal or other mine which could reasonably be expected to cause death or serious physical harm before such condition or practice can be abated.

(6) Amounts include 19 contests of proposed penalties under Subpart C, three contests of citations under Subpart B and three labor-related complaints under Subpart E of the Federal Mine Safety and Health Review Commission’s procedural rules. The pending legal actions are not exclusive to citations, notices, orders and penalties assessed by MSHA during the reporting period.

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Supplemental cash flow information (Tables)

3 Months Ended

Mar. 31, 2014

Schedule of supplemental cash flow information

A summary of supplemental cash flow information for the first quarter of 2014 and 2013 is presented in the following table (in millions).

	First Quarter
	2014		2013
Cash paid during the period for:
Income taxes	$	283	$	241
Interest:
Insurance and other businesses		139		119
Railroad, utilities and energy businesses		678		505
Finance and financial products businesses		102		139
Investments in equity securities exchanged in connection with business acquisition		1,350		—
Liabilities assumed in connection with business acquisitions		567		—

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Investments in equity securities (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014 Item		Dec. 31, 2013 Item
Summary of Investment Holdings [Line Items]
Fair value of investments	$ 118,486		$ 117,505
Equity Securities [Member]
Summary of Investment Holdings [Line Items]
Fair value of investments	118,486	[1]	117,505	[2]
Investment Concentration [Member] | Equity Securities [Member]
Summary of Investment Holdings [Line Items]
Concentration percentage	56.00%		55.00%
Number of companies in concentration percentage	4		4
American Express Company [Member]
Summary of Investment Holdings [Line Items]
Fair value of investments	13,600		13,800
Wells Fargo & Company [Member]
Summary of Investment Holdings [Line Items]
Fair value of investments	24,000		21,900
International Business Machines Corporation [Member]
Summary of Investment Holdings [Line Items]
Fair value of investments	13,200		12,800
The Coca-Cola Company [Member]
Summary of Investment Holdings [Line Items]
Fair value of investments	$ 15,500		$ 16,500

[1] As of March 31, 2014, approximately 56% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company - $13.6 billion; Wells Fargo & Company - $24.0 billion; International Business Machines Corporation - $13.2 billion; and The Coca-Cola Company - $15.5 billion).

[2] As of December 31, 2013, approximately 55% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company - $13.8 billion; Wells Fargo & Company - $21.9 billion; International Business Machines Corporation - $12.8 billion; and The Coca-Cola Company - $16.5 billion).

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Significant business acquisitions - Pro forma consolidated earnings data (Detail) (NV Energy, IMI plc and LSPI [Member], USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
NV Energy, IMI plc and LSPI [Member]
Business Acquisition [Line Items]
Revenues	$ 44,685
Net earnings attributable to Berkshire Hathaway shareholders	$ 4,924
Net earnings per equivalent Class A common share attributable to Berkshire Hathaway shareholders	$ 2,997

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Derivative contracts (Detail) (Finance and Financial Products [Member], Not Designated as Hedging Instrument [Member], USD $) In Millions, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Derivative [Line Items]
Liabilities	$ 5,095		$ 5,331
Equity Index Put Options [Member]
Derivative [Line Items]
Liabilities	4,800		4,667
Notional Value	32,225	[1]	32,095	[1]
Credit Default Contracts [Member]
Derivative [Line Items]
Liabilities	275		648
Notional Value	7,792	[2]	7,792	[2]
Other, principally interest rate and foreign currency [Member]
Derivative [Line Items]
Liabilities	$ 20		$ 16

[1] Represents the aggregate undiscounted amount payable at the contract expiration dates assuming that the value of the related index is zero at each contract's expiration date.

[2] Represents the maximum undiscounted future value of losses payable under the contracts, if all underlying issuers default and the residual value of the specified obligations is zero.

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Investments in equity securities - Narrative (Detail) (Equity Securities [Member], USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Equity Securities [Member]
Summary of Investment Holdings [Line Items]
Unrealized losses related to securities that have been in an unrealized loss position for more than 12 months	$ 44	$ 52

XML

Fair value measurements - Other information (Detail) (Significant Unobservable Inputs (Level 3) [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Discounted Cash Flow Method [Member] | Net Derivative Contract Liabilities [Member] | Credit Default Contracts - States and Municipalities [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value, unobservable input, credit spreads	0.48%
Fair value of liability	$ 275
Pricing Model, Option [Member] | Net Derivative Contract Liabilities [Member] | Equity Index Put Options [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value, unobservable input, volatility	20.00%
Fair value of liability	4,800
Other Equity Securities [Member] | Preferred Stock [Member] | Discounted Cash Flow Method [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value, unobservable input, expected duration	6 years
Fair value, unobservable input, discount for transferability restrictions and subordination	0.97%
Fair value of asset	12,297
Other Equity Securities [Member] | Common Stock Warrants [Member] | Pricing Model, Warrant [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value, unobservable input, discount for transferability and hedging restrictions	8.00%
Fair value of asset	$ 6,846

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Significant business acquisitions - Estimated fair values of assets acquired and liabilities assumed (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 19, 2013 NV Energy [Member]
Business Acquisition [Line Items]
Property, plant and equipment				$ 9,550
Goodwill	58,264	57,011	54,523	2,362
Other assets, including cash of $304 million				2,481
Assets acquired				14,393
Accounts payable, accruals and other liabilities				3,455
Notes payable and other borrowings				5,342
Liabilities assumed				8,797
Net assets acquired				$ 5,596

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Investment gains/losses (Tables)

3 Months Ended

Mar. 31, 2014

Investment gains/losses, including other-than-temporary impairment losses

Investment gains/losses are summarized below (in millions).

	First Quarter
	2014			2013
Fixed maturity securities —
Gross gains from sales and other disposals	$	190		$	15
Gross losses from sales and other disposals		(29	)		(54	)
Equity securities —
Gross gains from sales and other disposals		1,004			109
Gross losses from sales and other disposals		—			(1	)
Other-than-temporary impairments		(19	)		(85	)
Other		(15	)		521
	$	1,131		$	505

Investment gains/losses are reflected in the Consolidated Statements of Earnings as follows.

Insurance and other	$	1,059	$	434
Finance and financial products		72		71
	$	1,131	$	505

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Common stock (Detail)	3 Months Ended
	Mar. 31, 2014
Class A [Member]
Class of Stock [Line Items]
Shares issued, beginning of year (in shares)	868,616
Conversions of Class A common stock to Class B common stock and exercises of replacement stock options issued in a business acquisition	(1,443)
Shares issued, end of period (in shares)	867,173
Treasury shares, beginning of year	(9,573)
Treasury shares, end of period	(9,573)
Outstanding, beginning of year (in shares)	859,043
Outstanding, end of period (in shares)	857,600
Class B [Member]
Class of Stock [Line Items]
Shares issued, beginning of year (in shares)	1,178,775,092
Conversions of Class A common stock to Class B common stock and exercises of replacement stock options issued in a business acquisition	2,666,267
Shares issued, end of period (in shares)	1,181,441,359
Treasury shares, beginning of year	(1,408,484)
Treasury shares, end of period	(1,408,484)
Outstanding, beginning of year (in shares)	1,177,366,608
Outstanding, end of period (in shares)	1,180,032,875

XML

Supplemental cash flow information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Supplemental Cash Flow Information [Line Items]
Cash paid during the period for income taxes	$ 283	$ 241
Investments in equity securities exchanged in connection with business acquisition	1,350
Liabilities assumed in connection with business acquisitions	567
Insurance and Other [Member]
Supplemental Cash Flow Information [Line Items]
Cash paid during the period for interest	139	119
Railroad, Utilities and Energy [Member]
Supplemental Cash Flow Information [Line Items]
Cash paid during the period for interest	678	505
Finance and Financial Products [Member]
Supplemental Cash Flow Information [Line Items]
Cash paid during the period for interest	$ 102	$ 139

XML

Other investments - Narrative (Detail) (USD $)							3 Months Ended		12 Months Ended	3 Months Ended	12 Months Ended		12 Months Ended
	Mar. 31, 2014 Finance and Financial Products [Member]	Dec. 31, 2013 Finance and Financial Products [Member]	Mar. 31, 2014 Insurance and Other [Member]	Dec. 31, 2013 Insurance and Other [Member]	Mar. 31, 2014 Other Equity Securities [Member] Available-for-sale Securities [Member]	Dec. 31, 2013 Other Equity Securities [Member] Available-for-sale Securities [Member]	Mar. 31, 2014 Wm. Wrigley Jr. Company [Member] Other Equity Securities [Member] Available-for-sale Securities [Member] Finance and Financial Products [Member]	Mar. 31, 2014 The Dow Chemical Company [Member] Other Equity Securities [Member] Available-for-sale Securities [Member] Insurance and Other [Member] Series A Cumulative Convertible Perpetual Preferred Stock [Member]	Dec. 31, 2009 The Dow Chemical Company [Member] Other Equity Securities [Member] Available-for-sale Securities [Member] Insurance and Other [Member] Series A Cumulative Convertible Perpetual Preferred Stock [Member]	Mar. 31, 2014 Bank of America Corporation [Member] Other Equity Securities [Member] Available-for-sale Securities [Member] Cumulative Perpetual Preferred Stock [Member]	Dec. 31, 2011 Bank of America Corporation [Member] Other Equity Securities [Member] Available-for-sale Securities [Member] Cumulative Perpetual Preferred Stock [Member]	Mar. 31, 2014 Bank of America Corporation [Member] Other Equity Securities [Member] Available-for-sale Securities [Member] Warrants Expiring 2021 [Member]	Dec. 31, 2011 Bank of America Corporation [Member] Other Equity Securities [Member] Available-for-sale Securities [Member] Cumulative Perpetual Preferred Stock and Warrants [Member]	Mar. 31, 2014 Bank of America Corporation [Member] Other Equity Securities [Member] Available-for-sale Securities [Member] Finance and Financial Products [Member] Cumulative Perpetual Preferred Stock and Warrants [Member]	Mar. 31, 2014 Bank of America Corporation [Member] Other Equity Securities [Member] Available-for-sale Securities [Member] Insurance and Other [Member] Cumulative Perpetual Preferred Stock and Warrants [Member]
Other Investments [Line Items]
Investment in preferred stock, liquidation value							$ 2,100,000,000
Investment in preferred stock, stated dividend rate							5.00%	8.50%		6.00%
Investment, number of shares purchased									3,000,000		50,000
Amount paid for an investment									3,000,000,000				5,000,000,000
Conversion ratio of preferred stock into common stock								24.201
Preferred stock conversion price, per share								$ 41.32
Common stock threshold price, per share, to trigger the issuer's option to convert preferred stock into common stock								$ 53.72
Minimum number of trading days in a consecutive-day period that the issuer's common stock price must exceed to trigger the issuer's option to convert preferred stock to common stock								20 days
Range of trading days in a consecutive day period, number of days								30 days
Number of common shares that can be purchased												700,000,000
Redemption value of Cumulative Perpetual Preferred Stock, per share										$ 105,000
Redemption value of Cumulative Perpetual Preferred Stock, aggregate value										5,250,000,000
Aggregate cost to exercise warrants												5,000,000,000
Exercise price for warrants, per share												$ 7.142857
Investment allocation percentage														20.00%	80.00%
Other investments, cost basis					10,000,000,000
Other investments, fair value	$ 5,884,000,000	$ 5,617,000,000	$ 13,259,000,000	$ 12,334,000,000	$ 19,143,000,000	$ 17,951,000,000

XML

Fair value measurements - Financial assets and liabilities (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - carrying value	$ 29,558		$ 29,353
Investments in equity securities	118,486		117,505
Railroad, Utilities and Energy [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable and other borrowings - carrying value	47,751		46,655
Finance and Financial Products [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - carrying value	457		568
Investments in equity securities	935		938
Other investments	5,884		5,617
Loans and finance receivables - carrying value	12,464		12,826
Derivative contract liabilities	5,095		5,331
Notes payable and other borrowings - carrying value	13,024		13,129
Insurance and Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - carrying value	29,101		28,785
Investments in equity securities	116,160		115,464
Other investments	13,259		12,334
Notes payable and other borrowings - carrying value	12,448		12,440
Other Assets [Member] | Railroad, Utilities and Energy [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in equity securities	1,391	[1]	1,103	[1]
Fixed Maturities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - carrying value	29,558		29,353
Investments in fixed maturity securities - fair value	29,572		29,370
Fair Value, Measurements, Recurring [Member] | Quoted Prices (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in equity securities	118,418		117,438
Fair Value, Measurements, Recurring [Member] | Quoted Prices (Level 1) [Member] | Other Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative contract assets	4	[2]	3	[2]
Fair Value, Measurements, Recurring [Member] | Quoted Prices (Level 1) [Member] | Accounts Payable, Accruals and Other Liabilities [Member] | Railroad, Utilities and Energy [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative contract liabilities			1	[2]
Fair Value, Measurements, Recurring [Member] | Quoted Prices (Level 1) [Member] | Fixed Maturities [Member] | U.S. Treasury, U.S. government corporations and agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - fair value	2,366		2,184
Fair Value, Measurements, Recurring [Member] | Quoted Prices (Level 1) [Member] | Fixed Maturities [Member] | Foreign governments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - fair value	7,344		7,467
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in equity securities	61		60
Loans and finance receivables - fair value	62		454
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Railroad, Utilities and Energy [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable and other borrowings - fair value	52,281		49,879
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Finance and Financial Products [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable and other borrowings - fair value	12,920		12,846
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Insurance and Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable and other borrowings - fair value	12,842		12,655
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Other Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative contract assets	33	[2]	15	[2]
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Accounts Payable, Accruals and Other Liabilities [Member] | Railroad, Utilities and Energy [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative contract liabilities	117	[2]	198	[2]
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fixed Maturities [Member] | U.S. Treasury, U.S. government corporations and agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - fair value	569		473
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fixed Maturities [Member] | States, municipalities and political subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - fair value	2,185		2,345
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fixed Maturities [Member] | Foreign governments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - fair value	4,993		3,606
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fixed Maturities [Member] | Corporate bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - fair value	9,139		10,187
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fixed Maturities [Member] | Mortgage-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - fair value	1,987		2,040
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in equity securities	7		7
Other investments	19,143		17,951
Loans and finance receivables - fair value	11,499		11,548
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Finance and Financial Products [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable and other borrowings - fair value	634		659
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Finance and Financial Products [Member] | Equity Index Put Options [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative contract liabilities	4,800		4,667
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Finance and Financial Products [Member] | Credit Default Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative contract liabilities	275		648
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Other Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative contract assets	56	[2]	69	[2]
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Accounts Payable, Accruals and Other Liabilities [Member] | Railroad, Utilities and Energy [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative contract liabilities	43	[2]	9	[2]
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Heinz Holding [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment in Heinz Holding Preferred Stock - fair value	8,296		7,971
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Fixed Maturities [Member] | U.S. Treasury, U.S. government corporations and agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - fair value			1
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Fixed Maturities [Member] | Corporate bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - fair value	989		1,067
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in equity securities	118,486		117,505
Other investments	19,143		17,951
Loans and finance receivables - carrying value	12,464		12,826
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member] | Railroad, Utilities and Energy [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable and other borrowings - carrying value	47,751		46,655
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member] | Finance and Financial Products [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable and other borrowings - carrying value	13,024		13,129
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member] | Finance and Financial Products [Member] | Equity Index Put Options [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative contract liabilities	4,800		4,667
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member] | Finance and Financial Products [Member] | Credit Default Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative contract liabilities	275		648
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member] | Insurance and Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable and other borrowings - carrying value	12,448		12,440
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member] | Other Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative contract assets	93	[2]	87	[2]
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member] | Accounts Payable, Accruals and Other Liabilities [Member] | Railroad, Utilities and Energy [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative contract liabilities	160	[2]	208	[2]
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member] | Heinz Holding [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment in Heinz Holding Preferred Stock - carrying value	7,710		7,710
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member] | Fixed Maturities [Member] | U.S. Treasury, U.S. government corporations and agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - carrying value	2,935		2,658
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member] | Fixed Maturities [Member] | States, municipalities and political subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - carrying value	2,185		2,345
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member] | Fixed Maturities [Member] | Foreign governments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - carrying value	12,337		11,073
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member] | Fixed Maturities [Member] | Corporate bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - carrying value	10,114		11,237
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member] | Fixed Maturities [Member] | Mortgage-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - carrying value	1,987		2,040
Fair Value, Measurements, Recurring [Member] | Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in equity securities	118,486		117,505
Other investments	19,143		17,951
Loans and finance receivables - fair value	11,561		12,002
Fair Value, Measurements, Recurring [Member] | Fair Value [Member] | Railroad, Utilities and Energy [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable and other borrowings - fair value	52,281		49,879
Fair Value, Measurements, Recurring [Member] | Fair Value [Member] | Finance and Financial Products [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable and other borrowings - fair value	13,554		13,505
Fair Value, Measurements, Recurring [Member] | Fair Value [Member] | Finance and Financial Products [Member] | Equity Index Put Options [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative contract liabilities	4,800		4,667
Fair Value, Measurements, Recurring [Member] | Fair Value [Member] | Finance and Financial Products [Member] | Credit Default Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative contract liabilities	275		648
Fair Value, Measurements, Recurring [Member] | Fair Value [Member] | Insurance and Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable and other borrowings - fair value	12,842		12,655
Fair Value, Measurements, Recurring [Member] | Fair Value [Member] | Other Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative contract assets	93	[2]	87	[2]
Fair Value, Measurements, Recurring [Member] | Fair Value [Member] | Accounts Payable, Accruals and Other Liabilities [Member] | Railroad, Utilities and Energy [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative contract liabilities	160	[2]	208	[2]
Fair Value, Measurements, Recurring [Member] | Fair Value [Member] | Heinz Holding [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment in Heinz Holding Preferred Stock - fair value	8,296		7,971
Fair Value, Measurements, Recurring [Member] | Fair Value [Member] | Fixed Maturities [Member] | U.S. Treasury, U.S. government corporations and agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - fair value	2,935		2,658
Fair Value, Measurements, Recurring [Member] | Fair Value [Member] | Fixed Maturities [Member] | States, municipalities and political subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - fair value	2,185		2,345
Fair Value, Measurements, Recurring [Member] | Fair Value [Member] | Fixed Maturities [Member] | Foreign governments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - fair value	12,337		11,073
Fair Value, Measurements, Recurring [Member] | Fair Value [Member] | Fixed Maturities [Member] | Corporate bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - fair value	10,128		11,254
Fair Value, Measurements, Recurring [Member] | Fair Value [Member] | Fixed Maturities [Member] | Mortgage-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities - fair value	$ 1,987		$ 2,040

[1] Included in other assets.

[2] Assets are included in other assets and liabilities are included in accounts payable, accruals and other liabilities.

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Common stock - Narrative (Detail) (USD $)	3 Months Ended				3 Months Ended
	Mar. 31, 2014 Class B [Member] Vote	Mar. 31, 2014 Class A [Member] Vote	Dec. 31, 2013 Class A [Member]	Mar. 31, 2014 Preferred Stock [Member]	Mar. 31, 2014 Common Stock [Member]
Class of Stock [Line Items]
Ratio of net earnings per equivalent common share and dividend and distribution rights of Class B shares to Class A shares	0.000667
Number of votes entitled per share, number	0.0001	1
Number of shares of Class B stock obtainable from converting one Class A share	1,500
Class A equivalent shares outstanding		1,644,289	1,643,954
Preferred Stock, shares authorized				1,000,000
Preferred Stock, shares issued				0
Preferred Stock, shares outstanding				0
Shares repurchase, authorization description					In September 2011, Berkshire's Board of Directors ("Berkshire's Board") approved a common stock repurchase program under which Berkshire may repurchase its Class A and Class B shares at prices no higher than a 10% premium over the book value of the shares. In December 2012, Berkshire's Board amended the repurchase program by raising the price limit to no higher than a 20% premium over book value.
Minimum cash equivalent threshold after repurchase of common stock shares, amount					$ 20,000,000,000

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Fair value measurements - Significant unobservable inputs (Detail) (Significant Unobservable Inputs (Level 3) [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net Derivative Contract (Liabilities) [Member]
Fair value measurements Significant unobservable inputs [Line Items]
Beginning Balance	$ (5,255)	$ (7,847)
Gains (losses) included in earnings	222	1,235
Gains (losses) included in other comprehensive income	3	(3)
Gains (losses) included in regulatory assets and liabilities	2	1
Transfers into (out of) Level 3	(35)
Dispositions and settlements		(27)
Ending Balance	(5,063)	(6,641)
Fixed Maturities [Member]
Fair value measurements Significant unobservable inputs [Line Items]
Beginning Balance	372	652
Gains (losses) included in other comprehensive income		(2)
Dispositions and settlements	(1)	(1)
Transfers into (out of) Level 3	(56)
Ending Balance	315	649
Equity Securities and Other Investments [Member]
Fair value measurements Significant unobservable inputs [Line Items]
Beginning Balance	17,958	15,785
Gains (losses) included in earnings		520
Gains (losses) included in other comprehensive income	1,192	399
Ending Balance	$ 19,150	$ 16,704

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Derivative contracts - gains and losses (Detail) (Finance and Financial Products [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gains/losses	$ 236	$ 1,206
Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gains/losses	236	1,206
Not Designated as Hedging Instrument [Member] | Equity Index Put Options [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gains/losses	(132)	1,246
Not Designated as Hedging Instrument [Member] | Credit Default Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gains/losses	373	(14)
Not Designated as Hedging Instrument [Member] | Other, principally interest rate and foreign currency [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gains/losses	$ (5)	$ (26)

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Accumulated other comprehensive income

3 Months Ended

Mar. 31, 2014

Accumulated other comprehensive income

Note 18. Accumulated other comprehensive income

A summary of the net changes in after-tax accumulated other comprehensive income attributable to Berkshire Hathaway shareholders and significant amounts reclassified out of accumulated other comprehensive income for the three months ending March 31, 2014 and 2013 follows (in millions).

	Unrealized appreciation of investments, net			Foreign currency translation			Prior service and actuarial gains/losses of defined benefit pension plans			Other			Accumulated other comprehensive income
Three months ending March 31, 2014
Balance at December 31, 2013	$	44,042		$	(146	)	$	46		$	83		$	44,025
Other comprehensive income, net before reclassifications		1,674			24			(7	)		18			1,709
Amounts reclassified from accumulated other comprehensive income		(677	)		—			14			(22	)		(685	)
		997			24			7			(4	)		1,024
Balance at March 31, 2014	$	45,039		$	(122	)	$	53		$	79		$	45,049
Amounts reclassified from other comprehensive income into net earnings during 2014 are included on the following line items:
Investment gains/losses:
Insurance and other	$	(969	)	$	—		$	—		$	—		$	(969	)
Finance and financial products		(72	)		—			—			—			(72	)
Other		—			—			18			(37	)		(19	)
Reclassifications before income taxes		(1,041	)		—			18			(37	)		(1,060	)
Applicable income taxes		(364	)		—			4			(15	)		(375	)
	$	(677	)	$	—		$	14		$	(22	)	$	(685	)
Three months ending March 31, 2013
Balance at December 31, 2012	$	29,254		$	(120	)	$	(1,601	)	$	(33	)	$	27,500
Other comprehensive income, net before reclassifications		6,308			(560	)		24			12			5,784
Amounts reclassified from accumulated other comprehensive income		(328	)		—			34			2			(292	)
		5,980			(560	)		58			14			5,492
Balance at March 31, 2013	$	35,234		$	(680	)	$	(1,543	)	$	(19	)	$	32,992
Amounts reclassified from other comprehensive income into net earnings during 2013 are included on the following line items:
Investment gains/losses:
Insurance and other	$	(436	)	$	—		$	—		$	—		$	(436	)
Finance and financial products		(68	)		—			—			—			(68	)
Other		—			—			46			3			49
Reclassifications before income taxes		(504	)		—			46			3			(455	)
Applicable income taxes		(176	)		—			12			1			(163	)
	$	(328	)	$	—		$	34		$	2		$	(292	)

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Investments in fixed maturity securities - Carrying value by segment (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Summary of Investment Holdings [Line Items]
Investments in fixed maturity securities	$ 29,558	$ 29,353
Insurance and Other [Member]
Summary of Investment Holdings [Line Items]
Investments in fixed maturity securities	29,101	28,785
Finance and Financial Products [Member]
Summary of Investment Holdings [Line Items]
Investments in fixed maturity securities	$ 457	$ 568

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Common stock (Tables)

3 Months Ended

Mar. 31, 2014

Changes in issued and outstanding Berkshire common stock

Changes in Berkshire’s issued and outstanding common stock during the first quarter of 2014 are shown in the table below.

	Class A, $5 Par Value (1,650,000 shares authorized)									Class B, $0.0033 Par Value (3,225,000,000 shares authorized)
	Issued			Treasury			Outstanding			Issued		Treasury			Outstanding
Balance at December 31, 2013		868,616			(9,573	)		859,043			1,178,775,092		(1,408,484	)		1,177,366,608
Conversions of Class A common stock to Class B common stock and exercises of replacement stock options issued in a business acquisition		(1,443	)		—			(1,443	)		2,666,267		—			2,666,267
Balance at March 31, 2014		867,173			(9,573	)		857,600			1,181,441,359		(1,408,484	)		1,180,032,875

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Notes payable and other borrowings - Narrative (Detail) (USD $)	1 Months Ended					3 Months Ended
	Jan. 31, 2014 Berkshire Hathaway Finance Corporation [Member] Senior Notes [Member] Finance and Financial Products [Member]	Jan. 31, 2014 Berkshire Hathaway Finance Corporation [Member] Senior Notes Due 2017, Floating Rate [Member] Finance and Financial Products [Member]	Jan. 31, 2014 Berkshire Hathaway Finance Corporation [Member] Senior Notes Due 2018 at 2% [Member] Finance and Financial Products [Member]	Mar. 31, 2014 BNSF [Member] Debentures Due 2024 at 3.75% [Member] Railroad, Utilities and Energy [Member]	Mar. 31, 2014 BNSF [Member] Debentures Due 2044 at 4.9% [Member] Railroad, Utilities and Energy [Member]	Mar. 31, 2014 Berkshire Hathaway Energy Subsidiaries [Member] Term Debt [Member] Railroad, Utilities and Energy [Member]	Mar. 31, 2014 Berkshire Hathaway Subsidiaries [Member] Line of Credit and Commercial Paper Facilities [Member]	Mar. 31, 2014 Berkshire Hathaway (Parent) [Member] Subsidiaries Excluding Berkshire Hathaway Finance Corporation [Member]
Debt Instrument [Line Items]
Principal amount of debt issued	$ 750,000,000	$ 650,000,000	$ 100,000,000	$ 500,000,000	$ 1,000,000,000	$ 425,000,000
Debt instrument, interest rate, stated percentage			2.00%	3.75%	4.90%
Repayment of debt	750,000,000
Unused lines of credit available							6,200,000,000
Guarantee obligation								$ 4,000,000,000

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Goodwill and other intangible assets (Tables)

3 Months Ended

Mar. 31, 2014

Reconciliation of the change in goodwill

A reconciliation of the change in the carrying value of goodwill is as follows (in millions).

	March 31, 2014		December 31, 2013
Balance at beginning of year	$	57,011	$	54,523
Acquisitions of businesses		1,236		2,732
Other, including foreign currency translation		17		(244	)
Balance at end of period	$	58,264	$	57,011

Schedule of intangible assets

Intangible assets other than goodwill are included in other assets and are summarized as follows (in millions).

	March 31, 2014				December 31, 2013
	Gross carrying amount		Accumulated amortization		Gross carrying amount		Accumulated amortization
Insurance and other	$	12,924	$	3,936	$	11,923	$	3,723
Railroad, utilities and energy		2,214		1,309		2,214		1,231
	$	15,138	$	5,245	$	14,137	$	4,954
Trademarks and trade names	$	2,988	$	365	$	2,750	$	340
Patents and technology		5,667		2,771		5,173		2,626
Customer relationships		4,880		1,618		4,690		1,518
Other		1,603		491		1,524		470
	$	15,138	$	5,245	$	14,137	$	4,954

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Investments in fixed maturity securities - Amortized cost and estimated fair value of securities with fixed maturities (Detail) (Fixed Maturities [Member], USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Summary of Investment Holdings [Line Items]
Due in one year or less - amortized cost	$ 7,986
Due after one year through five years - amortized cost	12,704
Due after five years through ten years - amortized cost	2,587
Due after ten years - amortized cost	2,797
Total - amortized cost	27,843	27,764
Due in one year or less - fair value	8,069
Due after one year through five years - fair value	13,431
Due after five years through ten years - fair value	2,864
Due after ten years - fair value	3,221
Fair Value of Investments	29,572	29,370
Mortgage-backed securities [Member]
Summary of Investment Holdings [Line Items]
Mortgage-backed securities - amortized cost	1,769
Mortgage-backed securities - fair value	$ 1,987

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Goodwill and other intangible assets (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Goodwill [Line Items]
Balance at beginning of year	$ 57,011	$ 54,523
Acquisitions of businesses	1,236	2,732
Other, including foreign currency translation	17	(244)
Balance at end of period	$ 58,264	$ 57,011

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Investment gains/losses - Narrative (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		0 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Feb. 25, 2014 Equity Securities [Member] PSX [Member] Lubrizol Specialty Products Inc. (formerly Phillips Specialty Products Inc.) [Member]
Gain (Loss) on Investments [Line Items]
Investment gains/losses	$ 1,131	$ 505	$ 949

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Significant business acquisitions - Estimated fair values of assets acquired and liabilities assumed (Parenthetical) (Detail) (NV Energy [Member], USD $) In Millions, unless otherwise specified	Dec. 19, 2013
NV Energy [Member]
Business Acquisition [Line Items]
Cash acquired	$ 304

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New accounting pronouncements

3 Months Ended

Mar. 31, 2014

New accounting pronouncements

Note 2. New accounting pronouncements

In February 2013, the FASB issued ASU 2013-04, “Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation Is Fixed at the Reporting Date.” ASU 2013-04 requires an entity to measure obligations resulting from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date as the amount the reporting entity agreed to pay plus additional amounts the reporting entity expects to pay on behalf of its co-obligors. ASU 2013-04 became effective as of January 1, 2014.

In January 2014, the FASB issued ASU 2014-01 “Accounting for Investments in Qualified Affordable Housing Tax Credits.” ASU 2014-01 permits an entity to elect the proportional amortization method of accounting for limited liability investments in qualified affordable housing projects if certain criteria are met. Under the proportional amortization method, the investment is amortized in proportion to the tax benefits received and the amortization charge is reported as a component of income tax expense. We adopted ASU 2014-01 for eligible investments as of January 1, 2014. The adoption of these accounting pronouncements had an immaterial effect on our Consolidated Financial Statements.

In April 2014, the FASB issued ASU 2014-08 “Reporting of Discontinued Operations and Disclosures of Disposals of Components of an Entity.” ASU 2014-08 provides a narrower definition of discontinued operations than under existing U.S. GAAP. ASU 2014-08 requires that only disposals of components of an entity (or groups of components) that represent a strategic shift that has or will have a major effect on the reporting entity’s operations are reported in the financial statements as discontinued operations. ASU 2014-08 also provides guidance on the financial statement presentations and disclosures of discontinued operations. ASU 2014-08 is effective prospectively for disposals (or classifications of held-for-sale) of components of an entity that occur in annual or interim periods beginning after December 15, 2014.

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Receivables (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Insurance and Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Insurance premiums receivable	$ 8,725	$ 7,474
Reinsurance recoverable on unpaid losses	3,196	3,055
Trade and other receivables	11,148	10,111
Allowances for uncollectible accounts	(352)	(360)
Total receivables of insurance and other businesses	22,717	20,280
Finance and Financial Products [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer installment loans, commercial loans and finance receivables	12,807	13,170
Allowances for uncollectible loans	(343)	(344)
Total loans and finance receivables of finance and financial products businesses	$ 12,464	$ 12,826

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Accumulated other comprehensive income (Tables)

3 Months Ended

Mar. 31, 2014

Schedule of accumulated other comprehensive income

A summary of the net changes in after-tax accumulated other comprehensive income attributable to Berkshire Hathaway shareholders and significant amounts reclassified out of accumulated other comprehensive income for the three months ending March 31, 2014 and 2013 follows (in millions).

	Unrealized appreciation of investments, net			Foreign currency translation			Prior service and actuarial gains/losses of defined benefit pension plans			Other			Accumulated other comprehensive income
Three months ending March 31, 2014
Balance at December 31, 2013	$	44,042		$	(146	)	$	46		$	83		$	44,025
Other comprehensive income, net before reclassifications		1,674			24			(7	)		18			1,709
Amounts reclassified from accumulated other comprehensive income		(677	)		—			14			(22	)		(685	)
		997			24			7			(4	)		1,024
Balance at March 31, 2014	$	45,039		$	(122	)	$	53		$	79		$	45,049
Amounts reclassified from other comprehensive income into net earnings during 2014 are included on the following line items:
Investment gains/losses:
Insurance and other	$	(969	)	$	—		$	—		$	—		$	(969	)
Finance and financial products		(72	)		—			—			—			(72	)
Other		—			—			18			(37	)		(19	)
Reclassifications before income taxes		(1,041	)		—			18			(37	)		(1,060	)
Applicable income taxes		(364	)		—			4			(15	)		(375	)
	$	(677	)	$	—		$	14		$	(22	)	$	(685	)
Three months ending March 31, 2013
Balance at December 31, 2012	$	29,254		$	(120	)	$	(1,601	)	$	(33	)	$	27,500
Other comprehensive income, net before reclassifications		6,308			(560	)		24			12			5,784
Amounts reclassified from accumulated other comprehensive income		(328	)		—			34			2			(292	)
		5,980			(560	)		58			14			5,492
Balance at March 31, 2013	$	35,234		$	(680	)	$	(1,543	)	$	(19	)	$	32,992
Amounts reclassified from other comprehensive income into net earnings during 2013 are included on the following line items:
Investment gains/losses:
Insurance and other	$	(436	)	$	—		$	—		$	—		$	(436	)
Finance and financial products		(68	)		—			—			—			(68	)
Other		—			—			46			3			49
Reclassifications before income taxes		(504	)		—			46			3			(455	)
Applicable income taxes		(176	)		—			12			1			(163	)
	$	(328	)	$	—		$	34		$	2		$	(292	)

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Significant business acquisitions (Tables)

3 Months Ended

Mar. 31, 2014

Schedule of estimated fair values of assets acquired and liabilities assumed

The preliminary values of NV Energy’s identified assets acquired and liabilities assumed and residual goodwill at the date of acquisition are summarized as follows (in millions).

	December 19, 2013
Property, plant and equipment		$	9,550
Goodwill			2,362
Other assets, including cash of $304 million			2,481
Assets acquired		$	14,393
Accounts payable, accruals and other liabilities		$	3,455
Notes payable and other borrowings			5,342
Liabilities assumed		$	8,797
Net assets acquired		$	5,596

Schedule of pro forma consolidated earnings data

The following table sets forth certain unaudited pro forma consolidated earnings data for the first three months of 2013 (in millions, except per share amounts).

Revenues	$	44,685
Net earnings attributable to Berkshire Hathaway shareholders		4,924
Net earnings per equivalent Class A common share attributable to Berkshire Hathaway shareholders		2,997

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New accounting pronouncements (Policies)

3 Months Ended

Mar. 31, 2014

New accounting pronouncements

In February 2013, the FASB issued ASU 2013-04, “Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation Is Fixed at the Reporting Date.” ASU 2013-04 requires an entity to measure obligations resulting from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date as the amount the reporting entity agreed to pay plus additional amounts the reporting entity expects to pay on behalf of its co-obligors. ASU 2013-04 became effective as of January 1, 2014.

In January 2014, the FASB issued ASU 2014-01 “Accounting for Investments in Qualified Affordable Housing Tax Credits.” ASU 2014-01 permits an entity to elect the proportional amortization method of accounting for limited liability investments in qualified affordable housing projects if certain criteria are met. Under the proportional amortization method, the investment is amortized in proportion to the tax benefits received and the amortization charge is reported as a component of income tax expense. We adopted ASU 2014-01 for eligible investments as of January 1, 2014. The adoption of these accounting pronouncements had an immaterial effect on our Consolidated Financial Statements.

In April 2014, the FASB issued ASU 2014-08 “Reporting of Discontinued Operations and Disclosures of Disposals of Components of an Entity.” ASU 2014-08 provides a narrower definition of discontinued operations than under existing U.S. GAAP. ASU 2014-08 requires that only disposals of components of an entity (or groups of components) that represent a strategic shift that has or will have a major effect on the reporting entity’s operations are reported in the financial statements as discontinued operations. ASU 2014-08 also provides guidance on the financial statement presentations and disclosures of discontinued operations. ASU 2014-08 is effective prospectively for disposals (or classifications of held-for-sale) of components of an entity that occur in annual or interim periods beginning after December 15, 2014.

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Investments in equity securities - Fair value by segment (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Summary of Investment Holdings [Line Items]
Investments in equity securities	$ 118,486		$ 117,505
Insurance and Other [Member]
Summary of Investment Holdings [Line Items]
Investments in equity securities	116,160		115,464
Railroad, Utilities and Energy [Member] | Other Assets [Member]
Summary of Investment Holdings [Line Items]
Investments in equity securities	1,391	[1]	1,103	[1]
Finance and Financial Products [Member]
Summary of Investment Holdings [Line Items]
Investments in equity securities	$ 935		$ 938

[1] Included in other assets.

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Business segment data (Tables)

3 Months Ended

Mar. 31, 2014

Schedule of revenues and earnings by segment

Revenues by segment for the first quarter of 2014 and 2013 were as follows (in millions).

	First Quarter
	2014		2013
Operating Businesses:
Insurance group:
Premiums earned:
GEICO	$	4,884	$	4,399
General Re		1,557		1,469
Berkshire Hathaway Reinsurance Group		2,022		2,796
Berkshire Hathaway Primary Group		953		713
Investment income		951		1,001
Total insurance group		10,367		10,378
BNSF		5,447		5,284
Finance and financial products		1,435		1,373
Manufacturing businesses		8,641		8,161
McLane Company		10,454		10,785
Berkshire Hathaway Energy		4,306		3,116
Other businesses		3,358		3,091
		44,008		42,188
Reconciliation of segments to consolidated amount:
Investment and derivative gains/losses		1,367		1,711
Eliminations and other		78		(32	)
	$	45,453	$	43,867

Earnings before income taxes by segment for the first quarter of 2014 and 2013 were as follows (in millions).

	First Quarter
	2014			2013
Operating Businesses:
Insurance group:
Underwriting gain (loss):
GEICO	$	353		$	266
General Re		80			95
Berkshire Hathaway Reinsurance Group		183			974
Berkshire Hathaway Primary Group		99			54
Net investment income		946			996
Total insurance group		1,661			2,385
BNSF		1,169			1,289
Finance and financial products		372			296
Manufacturing businesses		1,068			948
McLane Company		115			132
Berkshire Hathaway Energy		619			553
Other businesses		287			282
		5,291			5,885
Reconciliation of segments to consolidated amount:
Investment and derivative gains/losses		1,367			1,711
Interest expense, excluding interest allocated to operating businesses		(77	)		(72	)
Eliminations and other		17			(229	)
	$	6,598		$	7,295

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Investments in fixed maturity securities (Tables)

3 Months Ended

Mar. 31, 2014

Schedule of investments in securities with fixed maturities

Investments in securities with fixed maturities as of March 31, 2014 and December 31, 2013 are summarized by type below (in millions).

	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value		Carrying Value
March 31, 2014
Available for sale:
U.S. Treasury, U.S. government corporations and agencies	$	2,926	$	16	$	(7	)	$	2,935	$	2,935
States, municipalities and political subdivisions		2,074		113		(2	)		2,185		2,185
Foreign governments		12,201		221		(85	)		12,337		12,337
Corporate bonds		8,213		1,245		(4	)		9,454		9,454
Mortgage-backed securities		1,769		224		(6	)		1,987		1,987
		27,183		1,819		(104	)		28,898		28,898
Held to maturity:
Wm. Wrigley Jr. Company notes		660		14		—			674		660
	$	27,843	$	1,833	$	(104	)	$	29,572	$	29,558
December 31, 2013
Available for sale:
U.S. Treasury, U.S. government corporations and agencies	$	2,650	$	16	$	(8	)	$	2,658	$	2,658
States, municipalities and political subdivisions		2,221		129		(5	)		2,345		2,345
Foreign governments		11,001		182		(110	)		11,073		11,073
Corporate bonds		9,383		1,190		(15	)		10,558		10,558
Mortgage-backed securities		1,830		218		(8	)		2,040		2,040
		27,085		1,735		(146	)		28,674		28,674
Held to maturity:
Wm. Wrigley Jr. Company notes		679		17		—			696		679
	$	27,764	$	1,752	$	(146	)	$	29,370	$	29,353

Investments in fixed maturity securities are reflected in our Consolidated Balance Sheets as follows (in millions).

	March 31, 2014		December 31, 2013
Insurance and other	$	29,101		$28,785
Finance and financial products		457		568
	$	29,558		$29,353

Schedule of amortized cost and estimated fair value of securities with fixed maturities

The amortized cost and estimated fair value of securities with fixed maturities at March 31, 2014 are summarized below by contractual maturity dates. Actual maturities will differ from contractual maturities because issuers of certain of the securities retain early call or prepayment rights. Amounts are in millions.

	Due in one year or less		Due after one year through five years		Due after five years through ten years		Due after ten years		Mortgage- backed securities		Total
Amortized cost	$	7,986	$	12,704	$	2,587	$	2,797	$	1,769	$	27,843
Fair value		8,069		13,431		2,864		3,221		1,987		29,572

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Investments in equity securities (Tables)

3 Months Ended

Mar. 31, 2014

Schedule of investments in equity securities

Investments in equity securities as of March 31, 2014 and December 31, 2013 are summarized based on the primary industry of the investee in the table below (in millions).

	Cost Basis		Unrealized Gains		Unrealized Losses			Fair Value
March 31, 2014 *
Banks, insurance and finance	$	22,410	$	30,042	$	(7	)	$	52,445
Consumer products		7,083		16,652		(1	)		23,734
Commercial, industrial and other		30,695		11,888		(276	)		42,307
	$	60,188	$	58,582	$	(284	)	$	118,486

* As of March 31, 2014, approximately 56% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company – $13.6 billion; Wells Fargo & Company – $24.0 billion; International Business Machines Corporation – $13.2 billion; and The Coca-Cola Company – $15.5 billion).

	Cost Basis		Unrealized Gains		Unrealized Losses			Fair Value
December 31, 2013 *
Banks, insurance and finance	$	22,420	$	28,021	$	—		$	50,441
Consumer products		7,082		17,854		—			24,936
Commercial, industrial and other		29,949		12,322		(143	)		42,128
	$	59,451	$	58,197	$	(143	)	$	117,505

* As of December 31, 2013, approximately 55% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company – $13.8 billion; Wells Fargo & Company – $21.9 billion; International Business Machines Corporation – $12.8 billion; and The Coca-Cola Company – $16.5 billion).

Investments in equity securities are reflected in our Consolidated Balance Sheets as follows (in millions).

	March 31, 2014		December 31, 2013
Insurance and other	$	116,160	$	115,464
Railroad, utilities and energy *		1,391		1,103
Finance and financial products		935		938
	$	118,486	$	117,505

* Included in other assets.

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General

3 Months Ended

Mar. 31, 2014

General

Note 1. General

The accompanying unaudited Consolidated Financial Statements include the accounts of Berkshire Hathaway Inc. (“Berkshire” or “Company”) consolidated with the accounts of all its subsidiaries and affiliates in which Berkshire holds controlling financial interests as of the financial statement date. In these notes the terms “us,” “we,” or “our” refer to Berkshire and its consolidated subsidiaries. Reference is made to Berkshire’s most recently issued Annual Report on Form 10-K (“Annual Report”) that included information necessary or useful to understanding Berkshire’s businesses and financial statement presentations. Our significant accounting policies and practices were presented as Note 1 to the Consolidated Financial Statements included in the Annual Report. In our 2014 financial statements, we are presenting Marmon’s transportation equipment manufacturing, repair and leasing businesses as a component of finance and financial products businesses. Prior period amounts in these financial statements have been reclassified to conform to the current year presentation. On April 30, 2014, MidAmerican Energy Holdings Company announced it changed its name to Berkshire Hathaway Energy Company (“Berkshire Hathaway Energy”).

Financial information in this Report reflects any adjustments (consisting only of normal recurring adjustments) that are, in the opinion of management, necessary to a fair statement of results for the interim periods in accordance with accounting principles generally accepted in the United States (“GAAP”).

For a number of reasons, our results for interim periods are not normally indicative of results to be expected for the year. The timing and magnitude of catastrophe losses incurred by insurance subsidiaries and the estimation error inherent to the process of determining liabilities for unpaid losses of insurance subsidiaries can be relatively more significant to results of interim periods than to results for a full year. Variations in the amount and timing of investment gains/losses can cause significant variations in periodic net earnings. Investment gains/losses are recorded when investments are disposed or are other-than-temporarily impaired. In addition, changes in the fair value of derivative assets/liabilities associated with derivative contracts can cause significant variations in periodic net earnings.

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Investments in H.J. Heinz Holding Corporation (Tables)

3 Months Ended

Mar. 31, 2014

Summarized consolidated financial information of Heinz Holding and its subsidiaries

Summarized consolidated financial information of Heinz Holding and its subsidiaries follows (in millions).

	March 30, 2014		December 29, 2013
Assets	$	38,962	$	38,972
Liabilities		22,461		22,429

	First quarter 2014
Sales	$	2,800
Net earnings	$	195
Preferred stock dividends earned by Berkshire		(180	)
Net earnings attributable to common stockholders	$	15
Earnings attributable to Berkshire *	$	188

* Includes dividends earned plus Berkshire’s share of net earnings attributable to common stockholders.

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Accumulated other comprehensive income - Reclassified Amounts (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment gains/losses	$ 1,131	$ 505
Reclassifications before income taxes	6,598	7,295
Applicable income taxes	1,825	2,278
Total amounts reclassified from other comprehensive income into net earnings	4,773	5,017
Insurance and Other [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment gains/losses	1,059	434
Finance and Financial Products [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment gains/losses	72	71
Portion Attributable to Berkshire Hathaway Shareholders [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other	(19)	49
Reclassifications before income taxes	(1,060)	(455)
Applicable income taxes	(375)	(163)
Total amounts reclassified from other comprehensive income into net earnings	(685)	(292)
Portion Attributable to Berkshire Hathaway Shareholders [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Insurance and Other [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment gains/losses	(969)	(436)
Portion Attributable to Berkshire Hathaway Shareholders [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Finance and Financial Products [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment gains/losses	(72)	(68)
Unrealized appreciation of investments, net [Member] | Portion Attributable to Berkshire Hathaway Shareholders [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassifications before income taxes	(1,041)	(504)
Applicable income taxes	(364)	(176)
Total amounts reclassified from other comprehensive income into net earnings	(677)	(328)
Unrealized appreciation of investments, net [Member] | Portion Attributable to Berkshire Hathaway Shareholders [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Insurance and Other [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment gains/losses	(969)	(436)
Unrealized appreciation of investments, net [Member] | Portion Attributable to Berkshire Hathaway Shareholders [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Finance and Financial Products [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment gains/losses	(72)	(68)
Prior service and actuarial gains/losses of defined benefit pension plans [Member] | Portion Attributable to Berkshire Hathaway Shareholders [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other	18	46
Reclassifications before income taxes	18	46
Applicable income taxes	4	12
Total amounts reclassified from other comprehensive income into net earnings	14	34
Other AOCI transactions [Member] | Portion Attributable to Berkshire Hathaway Shareholders [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other	(37)	3
Reclassifications before income taxes	(37)	3
Applicable income taxes	(15)	1
Total amounts reclassified from other comprehensive income into net earnings	$ (22)	$ 2

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Notes payable and other borrowings (Tables)

3 Months Ended

Mar. 31, 2014

Insurance and Other [Member]

Schedule of short and long term outstanding debt disclosure

Notes payable and other borrowings are summarized below (in millions). The weighted average interest rates and maturity date ranges shown in the following tables are based on borrowings as of March 31, 2014.

	Weighted Average Interest Rate		March 31, 2014		December 31, 2013
Insurance and other:
Issued by Berkshire due 2014-2047		2.7%	$	8,305	$	8,311
Short-term subsidiary borrowings		0.3%		978		949
Other subsidiary borrowings due 2014-2035		6.0%		3,165		3,180
			$	12,448	$	12,440

Railroad, Utilities and Energy [Member]

Schedule of short and long term outstanding debt disclosure

	Weighted Average Interest Rate		March 31, 2014		December 31, 2013
Railroad, utilities and energy:
Issued by Berkshire Hathaway Energy and its subsidiaries:
Berkshire Hathaway Energy senior unsecured debt due 2017-2043		5.7%	$	6,366	$	6,616
Subsidiary and other debt due 2014-2043		5.3%		23,436		23,033
Issued by BNSF due 2014-2097		5.2%		17,949		17,006
			$	47,751	$	46,655

Finance and Financial Products [Member]

Schedule of short and long term outstanding debt disclosure

	Weighted Average Interest Rate		March 31, 2014		December 31, 2013
Finance and financial products:
Issued by Berkshire Hathaway Finance Corporation (“BHFC”) due 2014-2043		3.3%	$	11,177	$	11,178
Issued by other subsidiaries due 2014-2036		4.9%		1,847		1,951
			$	13,024	$	13,129

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Investments in equity securities (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Summary of Investment Holdings [Line Items]
Fair value of investments	$ 118,486		$ 117,505
Equity Securities [Member]
Summary of Investment Holdings [Line Items]
Cost basis of investments	60,188		59,451
Unrealized gains on investments	58,582		58,197
Unrealized losses on investments	(284)		(143)
Fair value of investments	118,486	[1]	117,505	[2]
Banks, insurance and finance [Member] | Equity Securities [Member]
Summary of Investment Holdings [Line Items]
Cost basis of investments	22,410		22,420
Unrealized gains on investments	30,042		28,021
Unrealized losses on investments	(7)
Fair value of investments	52,445		50,441
Consumer products [Member] | Equity Securities [Member]
Summary of Investment Holdings [Line Items]
Cost basis of investments	7,083		7,082
Unrealized gains on investments	16,652		17,854
Unrealized losses on investments	(1)
Fair value of investments	23,734		24,936
Commercial, industrial and other [Member] | Equity Securities [Member]
Summary of Investment Holdings [Line Items]
Cost basis of investments	30,695		29,949
Unrealized gains on investments	11,888		12,322
Unrealized losses on investments	(276)		(143)
Fair value of investments	$ 42,307		$ 42,128

[1] As of March 31, 2014, approximately 56% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company - $13.6 billion; Wells Fargo & Company - $24.0 billion; International Business Machines Corporation - $13.2 billion; and The Coca-Cola Company - $15.5 billion).

[2] As of December 31, 2013, approximately 55% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company - $13.8 billion; Wells Fargo & Company - $21.9 billion; International Business Machines Corporation - $12.8 billion; and The Coca-Cola Company - $16.5 billion).

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Derivative contracts - Narrative (Detail) (Not Designated as Hedging Instrument [Member], USD $)	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Finance and Financial Products [Member]
Derivative [Line Items]
Collateral posting requirements under contracts with collateral provisions	$ 0	$ 0
Additional collateral posting requirements	1,100,000,000
Liabilities	5,095,000,000	5,331,000,000
Finance and Financial Products [Member] | Equity Index Put Options [Member]
Derivative [Line Items]
Aggregate intrinsic value of equity index put option contracts	1,600,000,000	1,700,000,000
Maturity date, range, start	June 2018
Maturity date, range, end	January 2026
Weighted average remaining life of derivative contract	6 years 9 months
Liabilities	4,800,000,000	4,667,000,000
Finance and Financial Products [Member] | Credit Default Contracts - States and Municipalities [Member]
Derivative [Line Items]
Maturity date, range, start	2019
Maturity date, range, end	2054
Weighted average remaining life of derivative contract	17 years 6 months
Notional value	7,800,000,000
Railroad, Utilities and Energy [Member] | Other Assets [Member]
Derivative [Line Items]
Assets	93,000,000	87,000,000
Railroad, Utilities and Energy [Member] | Accounts Payable, Accruals and Other Liabilities [Member]
Derivative [Line Items]
Liabilities	$ 160,000,000	$ 208,000,000

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Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
ASSETS
Cash and cash equivalents	$ 48,948	$ 48,186
Investments in fixed maturity securities	29,558	29,353
Investments in equity securities	118,486	117,505
Inventories	10,245	9,860
Goodwill	58,264	57,011
Total assets	494,944	484,931
LIABILITIES
Income taxes, principally deferred	60,001	57,739
Total liabilities	264,655	260,446
SHAREHOLDERS' EQUITY
Common stock	8	8
Capital in excess of par value	35,465	35,472
Accumulated other comprehensive income	45,049	44,025
Retained earnings	148,453	143,748
Treasury stock, at cost	(1,363)	(1,363)
Berkshire Hathaway shareholders' equity	227,612	221,890
Noncontrolling interests	2,677	2,595
Total shareholders' equity	230,289	224,485
Total liabilities and shareholders' equity	494,944	484,931
Insurance and Other [Member]
ASSETS
Cash and cash equivalents	42,193	42,433
Investments in fixed maturity securities	29,101	28,785
Investments in equity securities	116,160	115,464
Other investments	13,259	12,334
Investments in H.J. Heinz Holding Corporation	12,087	12,111
Receivables	22,717	20,280
Inventories	10,245	9,860
Property, plant and equipment	13,798	13,623
Goodwill	34,237	33,067
Other	20,518	19,113
Total assets	314,315	307,070
LIABILITIES
Losses and loss adjustment expenses	65,430	64,866
Unearned premiums	12,271	10,770
Life, annuity and health insurance benefits	11,958	11,681
Accounts payable, accruals and other liabilities	20,849	21,979
Notes payable and other borrowings	12,448	12,440
Total liabilities	122,956	121,736
Railroad, Utilities and Energy [Member]
ASSETS
Cash and cash equivalents	3,847	3,400
Property, plant and equipment	103,508	102,482
Goodwill	22,685	22,603
Other	16,904	16,149
Total assets	146,944	144,634
LIABILITIES
Accounts payable, accruals and other liabilities	14,467	14,557
Notes payable and other borrowings	47,751	46,655
Total liabilities	62,218	61,212
Finance and Financial Products [Member]
ASSETS
Cash and cash equivalents	2,908	2,353
Investments in fixed maturity securities	457	568
Investments in equity and fixed maturity securities	1,392	1,506
Investments in equity securities	935	938
Other investments	5,884	5,617
Loans and finance receivables	12,464	12,826
Property, plant and equipment and assets held for lease	7,774	7,700
Goodwill	1,342	1,341
Other	1,921	1,884
Total assets	33,685	33,227
LIABILITIES
Accounts payable, accruals and other liabilities	1,361	1,299
Derivative contract liabilities	5,095	5,331
Notes payable and other borrowings	13,024	13,129
Total liabilities	$ 19,480	$ 19,759

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Significant business acquisitions - Narrative (Detail) (USD $)	3 Months Ended	12 Months Ended		0 Months Ended			0 Months Ended	2 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Dec. 19, 2013 NV Energy [Member]	Dec. 19, 2013 NV Energy [Member] Berkshire Hathaway Energy [Member]	Jan. 02, 2014 IMI plc Beverage Dispensing and Merchandising Operations [Member] Marmon [Member]	Feb. 25, 2014 Lubrizol Specialty Products Inc. (formerly Phillips Specialty Products Inc.) [Member]	Feb. 25, 2014 Lubrizol Specialty Products Inc. (formerly Phillips Specialty Products Inc.) [Member] PSX [Member]	Feb. 25, 2014 IMI plc and LSPI [Member]	Mar. 31, 2014 IMI plc and LSPI [Member]
Business Acquisition [Line Items]
Aggregate consideration paid for acquisitions				$ 5,600,000,000	$ 1,130,000,000
Percentage of acquiree's common stock acquired						100.00%
Number of shares exchanged							17,422,615
Fair value of shares exchanged	1,350,000,000						1,350,000,000
Preliminary fair values of identified assets			14,393,000,000						1,870,000,000
Preliminary fair values of identified liabilities			8,797,000,000						450,000,000
Residual goodwill	$ 1,236,000,000	$ 2,732,000,000						$ 1,060,000,000

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Consolidated Statements of Changes in Shareholders' Equity (USD $) In Millions	Total	Common stock and capital in excess of par value	Accumulated other comprehensive income	Retained earnings	Treasury stock	Noncontrolling interests
Balance at Dec. 31, 2012	$ 191,588	$ 37,238	$ 27,500	$ 124,272	$ (1,363)	$ 3,941
Net earnings	5,017			4,892		125
Other comprehensive income, net	5,468		5,492			(24)
Issuance of common stock	39	39
Transactions with noncontrolling interests	(6)	1				(7)
Balance at Mar. 31, 2013	202,106	37,278	32,992	129,164	(1,363)	4,035
Balance at Dec. 31, 2013	224,485	35,480	44,025	143,748	(1,363)	2,595
Net earnings	4,773			4,705		68
Other comprehensive income, net	1,052		1,024			28
Issuance of common stock	35	35
Transactions with noncontrolling interests	(56)	(42)				(14)
Balance at Mar. 31, 2014	$ 230,289	$ 35,473	$ 45,049	$ 148,453	$ (1,363)	$ 2,677

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Investments in H.J. Heinz Holding Corporation (Detail) (Heinz Holding [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2014		Dec. 29, 2013
Heinz Holding [Member]
Schedule of Equity Method Investments [Line Items]
Assets	$ 38,962		$ 38,972
Liabilities	22,461		22,429
Sales	2,800
Net earnings	195
Preferred stock dividends earned by Berkshire	(180)
Net earnings attributable to common stockholders	15
Earnings attributable to Berkshire	$ 188	[1]

[1] Includes dividends earned plus Berkshire's share of net earnings attributable to common stockholders.

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Inventories (Tables)

3 Months Ended

Mar. 31, 2014

Schedule of inventories

Inventories are comprised of the following (in millions).

	March 31, 2014		December 31, 2013
Raw materials	$	1,828	$	1,755
Work in process and other		872		842
Finished manufactured goods		3,430		3,206
Goods acquired for resale		4,115		4,057
	$	10,245	$	9,860

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Property, plant and equipment and assets held for lease (Detail) (USD $) In Millions, unless otherwise specified																																					3 Months Ended
	Mar. 31, 2014 Insurance and Other [Member]	Dec. 31, 2013 Insurance and Other [Member]	Mar. 31, 2014 Insurance and Other [Member] Buildings and improvements [Member]	Dec. 31, 2013 Insurance and Other [Member] Buildings and improvements [Member]	Mar. 31, 2014 Insurance and Other [Member] Machinery and equipment [Member]	Dec. 31, 2013 Insurance and Other [Member] Machinery and equipment [Member]	Mar. 31, 2014 Insurance and Other [Member] Furniture, fixtures and other [Member]	Dec. 31, 2013 Insurance and Other [Member] Furniture, fixtures and other [Member]	Mar. 31, 2014 Insurance and Other [Member] Land [Member]	Dec. 31, 2013 Insurance and Other [Member] Land [Member]	Mar. 31, 2014 Railroad [Member] Land [Member]	Dec. 31, 2013 Railroad [Member] Land [Member]	Mar. 31, 2014 Railroad [Member] Track structure and other roadway [Member]	Dec. 31, 2013 Railroad [Member] Track structure and other roadway [Member]	Mar. 31, 2014 Railroad [Member] Locomotives, freight cars and other equipment [Member]	Dec. 31, 2013 Railroad [Member] Locomotives, freight cars and other equipment [Member]	Mar. 31, 2014 Railroad [Member] Construction in progress [Member]	Dec. 31, 2013 Railroad [Member] Construction in progress [Member]	Mar. 31, 2014 Utilities and Energy [Member] Utility generation, distribution and transmission system [Member]	Dec. 31, 2013 Utilities and Energy [Member] Utility generation, distribution and transmission system [Member]	Mar. 31, 2014 Utilities and Energy [Member] Interstate pipeline assets [Member]	Dec. 31, 2013 Utilities and Energy [Member] Interstate pipeline assets [Member]	Mar. 31, 2014 Utilities and Energy [Member] Independent power plants and other assets [Member]	Dec. 31, 2013 Utilities and Energy [Member] Independent power plants and other assets [Member]	Mar. 31, 2014 Utilities and Energy [Member] Construction in progress [Member]	Dec. 31, 2013 Utilities and Energy [Member] Construction in progress [Member]	Mar. 31, 2014 Railroad, Utilities and Energy [Member]	Dec. 31, 2013 Railroad, Utilities and Energy [Member]	Mar. 31, 2014 Finance and Financial Products [Member]	Dec. 31, 2013 Finance and Financial Products [Member]	Mar. 31, 2014 Finance and Financial Products [Member] Land [Member]	Dec. 31, 2013 Finance and Financial Products [Member] Land [Member]	Mar. 31, 2014 Finance and Financial Products [Member] Assets held for lease [Member]	Dec. 31, 2013 Finance and Financial Products [Member] Assets held for lease [Member]	Mar. 31, 2014 Finance and Financial Products [Member] Buildings, machinery and other [Member]	Dec. 31, 2013 Finance and Financial Products [Member] Buildings, machinery and other [Member]	Mar. 31, 2014 Minimum [Member] Insurance and Other [Member] Buildings and improvements [Member]	Mar. 31, 2014 Minimum [Member] Insurance and Other [Member] Machinery and equipment [Member]	Mar. 31, 2014 Minimum [Member] Insurance and Other [Member] Furniture, fixtures and other [Member]	Mar. 31, 2014 Minimum [Member] Railroad [Member] Track structure and other roadway [Member]	Mar. 31, 2014 Minimum [Member] Railroad [Member] Locomotives, freight cars and other equipment [Member]	Mar. 31, 2014 Minimum [Member] Utilities and Energy [Member] Utility generation, distribution and transmission system [Member]	Mar. 31, 2014 Minimum [Member] Utilities and Energy [Member] Interstate pipeline assets [Member]	Mar. 31, 2014 Minimum [Member] Utilities and Energy [Member] Independent power plants and other assets [Member]	Mar. 31, 2014 Minimum [Member] Finance and Financial Products [Member] Assets held for lease [Member]	Mar. 31, 2014 Minimum [Member] Finance and Financial Products [Member] Buildings, machinery and other [Member]	Mar. 31, 2014 Maximum [Member] Insurance and Other [Member] Buildings and improvements [Member]	Mar. 31, 2014 Maximum [Member] Insurance and Other [Member] Machinery and equipment [Member]	Mar. 31, 2014 Maximum [Member] Insurance and Other [Member] Furniture, fixtures and other [Member]	Mar. 31, 2014 Maximum [Member] Railroad [Member] Track structure and other roadway [Member]	Mar. 31, 2014 Maximum [Member] Railroad [Member] Locomotives, freight cars and other equipment [Member]	Mar. 31, 2014 Maximum [Member] Utilities and Energy [Member] Utility generation, distribution and transmission system [Member]	Mar. 31, 2014 Maximum [Member] Utilities and Energy [Member] Interstate pipeline assets [Member]	Mar. 31, 2014 Maximum [Member] Utilities and Energy [Member] Independent power plants and other assets [Member]	Mar. 31, 2014 Maximum [Member] Finance and Financial Products [Member] Assets held for lease [Member]	Mar. 31, 2014 Maximum [Member] Finance and Financial Products [Member] Buildings, machinery and other [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 26,472	$ 26,074	$ 6,308	$ 6,244	$ 16,136	$ 15,984	$ 2,924	$ 2,748	$ 1,104	$ 1,098	$ 5,973	$ 5,973	$ 40,525	$ 40,098	$ 7,996	$ 7,551	$ 971	$ 973	$ 57,903	$ 57,490	$ 6,498	$ 6,448	$ 2,999	$ 2,516	$ 4,247	$ 4,217	$ 127,112	$ 125,266
Property, plant and equipment, accumulated depreciation	(12,674)	(12,451)																									(23,604)	(22,784)
Total property, plant and equipment, net	13,798	13,623																									103,508	102,482
Estimated useful life (in years)																																					2 years	3 years	2 years	5 years	5 years	5 years	3 years	3 years	6 years	3 years	40 years	25 years	15 years	100 years	40 years	80 years	80 years	30 years	30 years	50 years
Property, plant and equipment and assets held for lease, gross																													11,042	10,888	232	233	9,651	9,509	1,159	1,146
Property, plant and equipment and assets held for lease, accumulated depreciation																													(3,268)	(3,188)
Total property, plant and equipment and assets held for lease, net																													$ 7,774	$ 7,700

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Notes payable and other borrowings

3 Months Ended

Mar. 31, 2014

Notes payable and other borrowings

Note 15. Notes payable and other borrowings

Notes payable and other borrowings are summarized below (in millions). The weighted average interest rates and maturity date ranges shown in the following tables are based on borrowings as of March 31, 2014.

	Weighted Average Interest Rate		March 31, 2014		December 31, 2013
Insurance and other:
Issued by Berkshire due 2014-2047		2.7%	$	8,305	$	8,311
Short-term subsidiary borrowings		0.3%		978		949
Other subsidiary borrowings due 2014-2035		6.0%		3,165		3,180
			$	12,448	$	12,440
	Weighted Average Interest Rate		March 31, 2014		December 31, 2013
Railroad, utilities and energy:
Issued by Berkshire Hathaway Energy and its subsidiaries:
Berkshire Hathaway Energy senior unsecured debt due 2017-2043		5.7%	$	6,366	$	6,616
Subsidiary and other debt due 2014-2043		5.3%		23,436		23,033
Issued by BNSF due 2014-2097		5.2%		17,949		17,006
			$	47,751	$	46,655

Berkshire Hathaway Energy subsidiary debt represents amounts issued pursuant to separate financing agreements. All, or substantially all, of the assets of certain Berkshire Hathaway Energy subsidiaries are, or may be, pledged or encumbered to support or otherwise secure the debt. These borrowing arrangements generally contain various covenants including, but not limited to, leverage ratios, interest coverage ratios and debt service coverage ratios. In the first quarter of 2014, Berkshire Hathaway Energy subsidiaries issued term debt of $425 million.

In March 2014, BNSF issued $500 million of 3.75% debentures due in 2024 and $1.0 billion of 4.9% debentures due in 2044. BNSF’s borrowings are primarily unsecured. As of March 31, 2014, BNSF and Berkshire Hathaway Energy and their subsidiaries were in compliance with all applicable debt covenants. Berkshire does not guarantee any debt or other borrowings of BNSF, Berkshire Hathaway Energy or their subsidiaries.

	Weighted Average Interest Rate		March 31, 2014		December 31, 2013
Finance and financial products:
Issued by Berkshire Hathaway Finance Corporation (“BHFC”) due 2014-2043		3.3%	$	11,177	$	11,178
Issued by other subsidiaries due 2014-2036		4.9%		1,847		1,951
			$	13,024	$	13,129

The borrowings of BHFC, a wholly owned finance subsidiary of Berkshire, are fully and unconditionally guaranteed by Berkshire. In January 2014, $750 million of BHFC senior notes matured and BHFC issued $750 million of new senior notes to replace maturing notes. The new senior notes consisted of $650 million of floating rate notes due in 2017 and $100 million of 2% notes due in 2018.

Our subsidiaries have approximately $6.2 billion in the aggregate of unused lines of credit and commercial paper capacity at March 31, 2014, to support short-term borrowing programs and provide additional liquidity. In addition to borrowings of BHFC, Berkshire guaranteed other subsidiary borrowings, which aggregated approximately $4.0 billion at March 31, 2014. Generally, Berkshire’s guarantee of a subsidiary’s debt obligation is an absolute, unconditional and irrevocable guarantee for the full and prompt payment when due of all present and future payment obligations.

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Property, plant and equipment and assets held for lease (Tables)

3 Months Ended

Mar. 31, 2014

Insurance and Other [Member]

Schedule of property, plant and equipment

A summary of property, plant and equipment of our insurance and other businesses follows (in millions).

	Ranges of estimated useful life	March 31, 2014		December 31, 2013
Land	—	$	1,104	$	1,098
Buildings and improvements	2 – 40 years		6,308		6,244
Machinery and equipment	3 – 25 years		16,136		15,984
Furniture, fixtures and other	2 – 15 years		2,924		2,748
			26,472		26,074
Accumulated depreciation			(12,674)		(12,451)
		$	13,798	$	13,623

Railroad, Utilities and Energy [Member]

Schedule of property, plant and equipment

A summary of property, plant and equipment of our railroad and our utilities and energy businesses follows (in millions).

	Ranges of estimated useful life	March 31, 2014		December 31, 2013
Railroad:
Land	—	$	5,973	$	5,973
Track structure and other roadway	5 – 100 years		40,525		40,098
Locomotives, freight cars and other equipment	5 – 40 years		7,996		7,551
Construction in progress	—		971		973
Utilities and energy:
Utility generation, distribution and transmission system	5 – 80 years		57,903		57,490
Interstate pipeline assets	3 – 80 years		6,498		6,448
Independent power plants and other assets	3 – 30 years		2,999		2,516
Construction in progress	—		4,247		4,217
			127,112		125,266
Accumulated depreciation			(23,604)		(22,784	)
		$	103,508	$	102,482

Finance and Financial Products [Member]

Schedule of property, plant and equipment

Assets held for lease and other property, plant and equipment of our finance and financial products businesses are summarized below (in millions).

	Ranges of estimated useful life	March 31, 2014		December 31, 2013
Assets held for lease	6 – 30 years	$	9,651	$	9,509
Land	—		232		233
Buildings, machinery and other	3 – 50 years		1,159		1,146
			11,042		10,888
Accumulated depreciation			(3,268)		(3,188	)
		$	7,774	$	7,700

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Common stock

3 Months Ended

Mar. 31, 2014

Common stock

Note 17. Common stock

Changes in Berkshire’s issued and outstanding common stock during the first quarter of 2014 are shown in the table below.

	Class A, $5 Par Value (1,650,000 shares authorized)									Class B, $0.0033 Par Value (3,225,000,000 shares authorized)
	Issued			Treasury			Outstanding			Issued		Treasury			Outstanding
Balance at December 31, 2013		868,616			(9,573	)		859,043			1,178,775,092		(1,408,484	)		1,177,366,608
Conversions of Class A common stock to Class B common stock and exercises of replacement stock options issued in a business acquisition		(1,443	)		—			(1,443	)		2,666,267		—			2,666,267
Balance at March 31, 2014		867,173			(9,573	)		857,600			1,181,441,359		(1,408,484	)		1,180,032,875

Each Class A common share is entitled to one vote per share. Class B common stock possesses dividend and distribution rights equal to one-fifteen-hundredth (1/1,500) of such rights of Class A common stock. Each Class B common share possesses voting rights equivalent to one-ten-thousandth (1/10,000) of the voting rights of a Class A share. Unless otherwise required under Delaware General Corporation Law, Class A and Class B common shares vote as a single class. Each share of Class A common stock is convertible, at the option of the holder, into 1,500 shares of Class B common stock. Class B common stock is not convertible into Class A common stock. On an equivalent Class A common stock basis, there were 1,644,289 shares outstanding as of March 31, 2014 and 1,643,954 shares outstanding as of December 31, 2013. In addition to our common stock, 1,000,000 shares of preferred stock are authorized, but none are issued and outstanding.

In September 2011, Berkshire’s Board of Directors (“Berkshire’s Board”) approved a common stock repurchase program under which Berkshire may repurchase its Class A and Class B shares at prices no higher than a 10% premium over the book value of the shares. In December 2012, Berkshire’s Board amended the repurchase program by raising the price limit to no higher than a 20% premium over book value. Berkshire may repurchase shares in the open market or through privately negotiated transactions. Berkshire’s Board authorization does not specify a maximum number of shares to be repurchased. However, repurchases will not be made if they would reduce Berkshire’s consolidated cash equivalent holdings below $20 billion. The repurchase program is expected to continue indefinitely and the amount of repurchases will depend entirely upon the level of cash available, the attractiveness of investment and business opportunities either at hand or on the horizon, and the degree of discount of the market price relative to management’s estimate of intrinsic value. The repurchase program does not obligate Berkshire to repurchase any dollar amount or number of Class A or Class B shares and there is no expiration date to the program. There were no share purchases in the first three months of 2014.

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Goodwill and other intangible assets - Intangible assets (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 15,138	$ 14,137
Accumulated amortization	5,245	4,954
Trademarks and trade names [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross carrying amount	2,988	2,750
Accumulated amortization	365	340
Patents and technology [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross carrying amount	5,667	5,173
Accumulated amortization	2,771	2,626
Customer relationships [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross carrying amount	4,880	4,690
Accumulated amortization	1,618	1,518
Other intangible assets [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross carrying amount	1,603	1,524
Accumulated amortization	491	470
Insurance and Other [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross carrying amount	12,924	11,923
Accumulated amortization	3,936	3,723
Railroad, Utilities and Energy [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross carrying amount	2,214	2,214
Accumulated amortization	$ 1,309	$ 1,231

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Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:
Net earnings	$ 4,773	$ 5,017
Adjustments to reconcile net earnings to operating cash flows:
Investment (gains) losses	(1,131)	(505)
Depreciation and amortization	1,772	1,601
Other	(236)	(16)
Changes in operating assets and liabilities before business acquisitions:
Losses and loss adjustment expenses	474	547
Deferred charges reinsurance assumed	(278)	(389)
Unearned premiums	1,497	1,306
Receivables and originated loans	(2,415)	(1,475)
Derivative contract assets and liabilities	(236)	(1,117)
Income taxes	1,141	1,793
Other	(433)	(707)
Net cash flows from operating activities	4,928	6,055
Cash flows from investing activities:
Purchases of fixed maturity securities	(1,996)	(1,807)
Purchases of equity securities	(1,202)	(1,411)
Sales of fixed maturity securities	88	675
Redemptions and maturities of fixed maturity securities	1,989	1,426
Sales of equity securities	103	673
Purchases of loans and finance receivables	(58)	(57)
Collections of loans and finance receivables	501	69
Acquisitions of businesses, net of cash acquired	(700)	(92)
Purchases of property, plant and equipment	(2,794)	(2,207)
Other	214	(1,225)
Net cash flows from investing activities	(3,855)	(3,956)
Cash flows from financing activities:
Change in short term borrowings, net	(4)	(496)
Acquisitions of noncontrolling interests	(1,286)	(590)
Other financing activities	14	(7)
Net cash flows from financing activities	(311)	57
Effects of foreign currency exchange rate changes		(59)
Increase in cash and cash equivalents	762	2,097
Cash and cash equivalents:
Cash and cash equivalents at beginning of year	48,186	46,992
Cash and cash equivalents at end of first quarter	48,948	49,089
Insurance and Other [Member]
Adjustments to reconcile net earnings to operating cash flows:
Investment (gains) losses	(1,059)	(434)
Cash flows from financing activities:
Proceeds from borrowings	10	2,579
Repayments of borrowings	(27)	(2,681)
Cash and cash equivalents:
Cash and cash equivalents at beginning of year	42,433	42,358
Cash and cash equivalents at end of first quarter	42,193	43,984
Railroad, Utilities and Energy [Member]
Cash flows from financing activities:
Proceeds from borrowings	1,925	1,500
Repayments of borrowings	(838)	(152)
Cash and cash equivalents:
Cash and cash equivalents at beginning of year	3,400	2,570
Cash and cash equivalents at end of first quarter	3,847	3,003
Finance and Financial Products [Member]
Adjustments to reconcile net earnings to operating cash flows:
Investment (gains) losses	(72)	(71)
Cash flows from financing activities:
Proceeds from borrowings	749	519
Repayments of borrowings	(854)	(615)
Cash and cash equivalents:
Cash and cash equivalents at beginning of year	2,353	2,064
Cash and cash equivalents at end of first quarter	$ 2,908	$ 2,102

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Consolidated Statements of Earnings (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Revenues:
Investment gains/losses	$ 1,131		$ 505
Total revenues	45,453		43,867
Costs and expenses:
Total costs and expenses	38,855		36,572
Earnings before income taxes	6,598		7,295
Income tax expense	1,825		2,278
Net earnings	4,773		5,017
Less: Earnings attributable to noncontrolling interests	68		125
Net earnings attributable to Berkshire Hathaway	4,705		4,892
Average common shares outstanding	1,644,059	[1]	1,643,181	[1]
Class A [Member]
Net earnings per share attributable to Berkshire Hathaway shareholders:
Net earnings per share attributable to Berkshire Hathaway shareholders	$ 2,862	[1]	$ 2,977	[1]
Insurance and Other [Member]
Revenues:
Insurance premiums earned	9,416		9,377
Sales and service revenues	22,328		21,996
Interest, dividend and other investment income	1,155		1,010
Investment gains/losses	1,059		434
Total revenues	33,958		32,817
Costs and expenses:
Insurance losses and loss adjustment expenses	5,590		5,144
Life, annuity and health insurance benefits	1,210		1,261
Insurance underwriting expenses	1,901		1,583
Cost of sales and services	18,137		18,019
Selling, general and administrative expenses	2,888		2,814
Interest expense	98		93
Total costs and expenses	29,824		28,914
Railroad, Utilities and Energy [Member]
Revenues:
Total revenues	9,753		8,400
Costs and expenses:
Cost of sales and operating expenses	7,381		6,111
Interest expense	565		447
Total costs and expenses	7,946		6,558
Finance and Financial Products [Member]
Revenues:
Sales and service revenues	1,096		1,031
Interest, dividend and other investment income	338		342
Investment gains/losses	72		71
Derivative gains/losses	236		1,206
Total revenues	1,742		2,650
Costs and expenses:
Cost of sales and services	589		558
Selling, general and administrative expenses	377		396
Interest expense	119		146
Total costs and expenses	$ 1,085		$ 1,100

[1] Average shares outstanding include average Class A common shares and average Class B common shares determined on an equivalent Class A common stock basis. Net earnings per common share attributable to Berkshire Hathaway shown above represents net earnings per equivalent Class A common share. Net earnings per Class B common share is equal to one-fifteen-hundredth (1/1,500) of such amount.

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Inventories

3 Months Ended

Mar. 31, 2014

Inventories

Note 10. Inventories

Inventories are comprised of the following (in millions).

	March 31, 2014		December 31, 2013
Raw materials	$	1,828	$	1,755
Work in process and other		872		842
Finished manufactured goods		3,430		3,206
Goods acquired for resale		4,115		4,057
	$	10,245	$	9,860

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Document and Entity Information	3 Months Ended
	Mar. 31, 2014	Apr. 24, 2014 Class A [Member]	Apr. 24, 2014 Class B [Member]
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q1
Trading Symbol	BRKA
Entity Registrant Name	BERKSHIRE HATHAWAY INC.
Entity Central Index Key	0001067983
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		856,453	1,181,859,931

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Property, plant and equipment and assets held for lease

3 Months Ended

Mar. 31, 2014

Property, plant and equipment and assets held for lease

Note 11. Property, plant and equipment and assets held for lease

A summary of property, plant and equipment of our insurance and other businesses follows (in millions).

	Ranges of estimated useful life	March 31, 2014		December 31, 2013
Land	—	$	1,104	$	1,098
Buildings and improvements	2 – 40 years		6,308		6,244
Machinery and equipment	3 – 25 years		16,136		15,984
Furniture, fixtures and other	2 – 15 years		2,924		2,748
			26,472		26,074
Accumulated depreciation			(12,674)		(12,451)
		$	13,798	$	13,623

Depreciation expense of insurance and other businesses for the first quarter of 2014 and 2013 was $397 million and $400 million, respectively.

A summary of property, plant and equipment of our railroad and our utilities and energy businesses follows (in millions).

	Ranges of estimated useful life	March 31, 2014		December 31, 2013
Railroad:
Land	—	$	5,973	$	5,973
Track structure and other roadway	5 – 100 years		40,525		40,098
Locomotives, freight cars and other equipment	5 – 40 years		7,996		7,551
Construction in progress	—		971		973
Utilities and energy:
Utility generation, distribution and transmission system	5 – 80 years		57,903		57,490
Interstate pipeline assets	3 – 80 years		6,498		6,448
Independent power plants and other assets	3 – 30 years		2,999		2,516
Construction in progress	—		4,247		4,217
			127,112		125,266
Accumulated depreciation			(23,604)		(22,784	)
		$	103,508	$	102,482

Railroad property, plant and equipment includes the land, other roadway, track structure and rolling stock (primarily locomotives and freight cars) of BNSF. The utility generation, distribution and transmission system and interstate pipeline assets are the regulated assets of public utility and natural gas pipeline subsidiaries. Depreciation expense of the railroad, utilities and energy businesses for the first quarter of 2014 and 2013 was $947 million and $795 million, respectively.

Assets held for lease and other property, plant and equipment of our finance and financial products businesses are summarized below (in millions).

	Ranges of estimated useful life	March 31, 2014		December 31, 2013
Assets held for lease	6 – 30 years	$	9,651	$	9,509
Land	—		232		233
Buildings, machinery and other	3 – 50 years		1,159		1,146
			11,042		10,888
Accumulated depreciation			(3,268)		(3,188	)
		$	7,774	$	7,700

Depreciation expense of the finance and financial products businesses for the first quarter of 2014 and 2013 was $148 million and $142 million, respectively.

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Common stock (Parenthetical) (Detail) (USD $)	Mar. 31, 2014
Class A [Member]
Class of Stock [Line Items]
Common Stock, par value per share	$ 5
Common Stock, shares authorized	1,650,000
Class B [Member]
Class of Stock [Line Items]
Common Stock, par value per share	$ 0.0033
Common Stock, shares authorized	3,225,000,000

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Consolidated Statements of Earnings (Parenthetical) (Class B [Member])	3 Months Ended
	Mar. 31, 2014
Class B [Member]
Ratio of earnings per Class B share to earnings per Class A share	0.000667

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Investments in equity securities

3 Months Ended

Mar. 31, 2014

Investments in equity securities

Note 5. Investments in equity securities

Investments in equity securities as of March 31, 2014 and December 31, 2013 are summarized based on the primary industry of the investee in the table below (in millions).

	Cost Basis		Unrealized Gains		Unrealized Losses			Fair Value
March 31, 2014 *
Banks, insurance and finance	$	22,410	$	30,042	$	(7	)	$	52,445
Consumer products		7,083		16,652		(1	)		23,734
Commercial, industrial and other		30,695		11,888		(276	)		42,307
	$	60,188	$	58,582	$	(284	)	$	118,486

* As of March 31, 2014, approximately 56% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company – $13.6 billion; Wells Fargo & Company – $24.0 billion; International Business Machines Corporation – $13.2 billion; and The Coca-Cola Company – $15.5 billion).

	Cost Basis		Unrealized Gains		Unrealized Losses			Fair Value
December 31, 2013 *
Banks, insurance and finance	$	22,420	$	28,021	$	—		$	50,441
Consumer products		7,082		17,854		—			24,936
Commercial, industrial and other		29,949		12,322		(143	)		42,128
	$	59,451	$	58,197	$	(143	)	$	117,505

* As of December 31, 2013, approximately 55% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company – $13.8 billion; Wells Fargo & Company – $21.9 billion; International Business Machines Corporation – $12.8 billion; and The Coca-Cola Company – $16.5 billion).

As of March 31, 2014 and December 31, 2013, we concluded that the unrealized losses shown in the tables above were temporary. Our conclusions were based on: (a) our ability and intent to hold the securities to recovery; (b) our assessment that the underlying business and financial condition of each of these issuers was favorable; (c) our opinion that the relative price declines were not significant; and (d) our belief that market prices will increase to and exceed our cost. As of March 31, 2014 and December 31, 2013, unrealized losses on equity securities in a continuous unrealized loss position for more than twelve consecutive months were $44 million and $52 million, respectively.

Investments in equity securities are reflected in our Consolidated Balance Sheets as follows (in millions).

	March 31, 2014		December 31, 2013
Insurance and other	$	116,160	$	115,464
Railroad, utilities and energy *		1,391		1,103
Finance and financial products		935		938
	$	118,486	$	117,505

* Included in other assets.

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Investments in fixed maturity securities

3 Months Ended

Mar. 31, 2014

Investments in fixed maturity securities

Note 4. Investments in fixed maturity securities

Investments in securities with fixed maturities as of March 31, 2014 and December 31, 2013 are summarized by type below (in millions).

	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value		Carrying Value
March 31, 2014
Available for sale:
U.S. Treasury, U.S. government corporations and agencies	$	2,926	$	16	$	(7	)	$	2,935	$	2,935
States, municipalities and political subdivisions		2,074		113		(2	)		2,185		2,185
Foreign governments		12,201		221		(85	)		12,337		12,337
Corporate bonds		8,213		1,245		(4	)		9,454		9,454
Mortgage-backed securities		1,769		224		(6	)		1,987		1,987
		27,183		1,819		(104	)		28,898		28,898
Held to maturity:
Wm. Wrigley Jr. Company notes		660		14		—			674		660
	$	27,843	$	1,833	$	(104	)	$	29,572	$	29,558
December 31, 2013
Available for sale:
U.S. Treasury, U.S. government corporations and agencies	$	2,650	$	16	$	(8	)	$	2,658	$	2,658
States, municipalities and political subdivisions		2,221		129		(5	)		2,345		2,345
Foreign governments		11,001		182		(110	)		11,073		11,073
Corporate bonds		9,383		1,190		(15	)		10,558		10,558
Mortgage-backed securities		1,830		218		(8	)		2,040		2,040
		27,085		1,735		(146	)		28,674		28,674
Held to maturity:
Wm. Wrigley Jr. Company notes		679		17		—			696		679
	$	27,764	$	1,752	$	(146	)	$	29,370	$	29,353

Investments in fixed maturity securities are reflected in our Consolidated Balance Sheets as follows (in millions).

	March 31, 2014		December 31, 2013
Insurance and other	$	29,101		$28,785
Finance and financial products		457		568
	$	29,558		$29,353

Investments in foreign government securities include securities issued by national and provincial government entities as well as instruments that are unconditionally guaranteed by such entities. As of March 31, 2014, approximately 93% of foreign government holdings were rated AA or higher by at least one of the major rating agencies and securities issued or guaranteed by the United Kingdom, Germany, Australia, Canada and The Netherlands represented 75% of these investments. Unrealized losses on all fixed maturity investments in a continuous unrealized loss position for more than twelve consecutive months were $21 million as of March 31, 2014 and $26 million as of December 31, 2013.

The amortized cost and estimated fair value of securities with fixed maturities at March 31, 2014 are summarized below by contractual maturity dates. Actual maturities will differ from contractual maturities because issuers of certain of the securities retain early call or prepayment rights. Amounts are in millions.

	Due in one year or less		Due after one year through five years		Due after five years through ten years		Due after ten years		Mortgage- backed securities		Total
Amortized cost	$	7,986	$	12,704	$	2,587	$	2,797	$	1,769	$	27,843
Fair value		8,069		13,431		2,864		3,221		1,987		29,572

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Fair value measurements

3 Months Ended

Mar. 31, 2014

Fair value measurements

Note 16. Fair value measurements

Our financial assets and liabilities are summarized below as of March 31, 2014 and December 31, 2013 with fair values shown according to the fair value hierarchy (in millions). The carrying values of cash and cash equivalents, accounts receivable and accounts payable, accruals and other liabilities are considered to be reasonable estimates of their fair values.

	Carrying Value			Fair Value			Quoted Prices (Level 1)			Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
March 31, 2014
Investments in fixed maturity securities:
U.S. Treasury, U.S. government corporations and agencies		$	2,935		$	2,935		$	2,366		$	569		$	—
States, municipalities and political subdivisions			2,185			2,185			—			2,185			—
Foreign governments			12,337			12,337			7,344			4,993			—
Corporate bonds			10,114			10,128			—			9,139			989
Mortgage-backed securities			1,987			1,987			—			1,987			—
Investments in equity securities			118,486			118,486			118,418			61			7
Investment in Heinz Holding Preferred Stock			7,710			8,296			—			—			8,296
Other investments			19,143			19,143			—			—			19,143
Loans and finance receivables			12,464			11,561			—			62			11,499
Derivative contract assets (1)			93			93			4			33			56
Derivative contract liabilities:
Railroad, utilities and energy (1)			160			160			—			117			43
Finance and financial products:
Equity index put options			4,800			4,800			—			—			4,800
Credit default			275			275			—			—			275
Notes payable and other borrowings:
Insurance and other			12,448			12,842			—			12,842			—
Railroad, utilities and energy			47,751			52,281			—			52,281			—
Finance and financial products			13,024			13,554			—			12,920			634
December 31, 2013
Investments in fixed maturity securities:
U.S. Treasury, U.S. government corporations and agencies		$	2,658		$	2,658		$	2,184		$	473		$	1
States, municipalities and political subdivisions			2,345			2,345			—			2,345			—
Foreign governments			11,073			11,073			7,467			3,606			—
Corporate bonds			11,237			11,254			—			10,187			1,067
Mortgage-backed securities			2,040			2,040			—			2,040			—
Investments in equity securities			117,505			117,505			117,438			60			7
Investment in Heinz Holding Preferred Stock			7,710			7,971			—			—			7,971
Other investments			17,951			17,951			—			—			17,951
Loans and finance receivables			12,826			12,002			—			454			11,548
Derivative contract assets (1)			87			87			3			15			69
Derivative contract liabilities:
Railroad, utilities and energy (1)			208			208			1			198			9
Finance and financial products:
Equity index put options			4,667			4,667			—			—			4,667
Credit default			648			648			—			—			648
Notes payable and other borrowings:
Insurance and other			12,440			12,655			—			12,655			—
Railroad, utilities and energy			46,655			49,879			—			49,879			—
Finance and financial products			13,129			13,505			—			12,846			659

⁽¹⁾ Assets are included in other assets and liabilities are included in accounts payable, accruals and other liabilities.

The fair values of substantially all of our financial instruments were measured using market or income approaches. Considerable judgment may be required in interpreting market data used to develop the estimates of fair value. Accordingly, the fair values presented are not necessarily indicative of the amounts that could be realized in an actual current market exchange. The use of alternative market assumptions and/or estimation methodologies may have a material effect on the estimated fair value. The hierarchy for measuring fair value consists of Levels 1 through 3, which are described below.

Level 1 – Inputs represent unadjusted quoted prices for identical assets or liabilities exchanged in active markets.

Level 2 – Inputs include directly or indirectly observable inputs (other than Level 1 inputs) such as quoted prices for similar assets or liabilities exchanged in active or inactive markets; quoted prices for identical assets or liabilities exchanged in inactive markets; other inputs that may be considered in fair value determinations of the assets or liabilities, such as interest rates and yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates; and inputs that are derived principally from or corroborated by observable market data by correlation or other means. Pricing evaluations generally reflect discounted expected future cash flows, which incorporate yield curves for instruments with similar characteristics, such as credit ratings, estimated durations and yields for other instruments of the issuer or entities in the same industry sector.

Level 3 – Inputs include unobservable inputs used in the measurement of assets and liabilities. Management is required to use its own assumptions regarding unobservable inputs because there is little, if any, market activity in the assets or liabilities and we may be unable to corroborate the related observable inputs. Unobservable inputs require management to make certain projections and assumptions about the information that would be used by market participants in pricing assets or liabilities.

Reconciliations of assets and liabilities measured and carried at fair value on a recurring basis with the use of significant unobservable inputs (Level 3) for the three months ending March 31, 2014 and 2013 follow (in millions).

	Investments in fixed maturity securities			Investments in equity securities and other investments		Net derivative contract liabilities
Three months ending March 31, 2014
Balance at December 31, 2013	$	372		$	17,958	$	(5,255	)
Gains (losses) included in:
Earnings		—			—		222
Other comprehensive income		—			1,192		3
Regulatory assets and liabilities		—			—		2
Dispositions and settlements		(1	)		—		—
Transfers into (out of) Level 3		(56	)		—		(35	)
Balance at March 31, 2014	$	315		$	19,150	$	(5,063	)
Three months ending March 31, 2013
Balance at December 31, 2012	$	652		$	15,785	$	(7,847	)
Gains (losses) included in:
Earnings		—			520		1,235
Other comprehensive income		(2	)		399		(3	)
Regulatory assets and liabilities		—			—		1
Dispositions and settlements		(1	)		—		(27	)
Transfers into (out of) Level 3		—			—		—
Balance at March 31, 2013	$	649		$	16,704	$	(6,641	)

Gains and losses included in earnings are included as components of investment gains/losses, derivative gains/losses and other revenues, as appropriate and are primarily related to changes in the values of derivative contracts and settlement transactions. Gains and losses included in other comprehensive income are included as components of the net change in unrealized appreciation of investments and the reclassification of investment appreciation in earnings, as appropriate in the Consolidated Statements of Comprehensive Income.

Quantitative information as of March 31, 2014, with respect to assets and liabilities measured and carried at fair value on a recurring basis with the use of significant unobservable inputs (Level 3) follows (in millions).

	Fair value		Principal valuation techniques	Unobservable Inputs	Weighted Average
Other investments:
Preferred stocks	$	12,297	Discounted cash flow	Expected duration	6 years
				Discount for transferability restrictions and subordination	97 basis points
Common stock warrants		6,846	Warrant pricing model	Discount for transferability and hedging restrictions	8%
Net derivative liabilities:
Equity index put options		4,800	Option pricing model	Volatility	20%
Credit default-states/municipalities		275	Discounted cash flow	Credit spreads	48 basis points

Other investments currently consist of investments that were acquired in a few relatively large private placement transactions and include preferred stocks and common stock warrants. These investments are subject to contractual restrictions on transferability and/or provisions that prevent us from economically hedging our investments. In applying discounted estimated cash flow techniques in valuing the perpetual preferred stocks, we made assumptions regarding the expected durations of the investments, as the issuers may have the right to redeem or convert these investments. We also made estimates regarding the impact of subordination, as the preferred stocks have a lower priority in liquidation than debt instruments of the issuers, which affected the discount rates used. In valuing the common stock warrants, we used a warrant valuation model. While most of the inputs to the model are observable, we are subject to the aforementioned contractual restrictions. We have applied discounts with respect to the contractual restrictions. Increases or decreases to these inputs would result in decreases or increases to the fair values of the investments.

Our equity index put option and credit default contracts are not exchange traded and certain contract terms are not standard in derivatives markets. For example, we are not required to post collateral under most of our contracts and many contracts have long durations, and therefore are illiquid. For these and other reasons, we classified these contracts as Level 3. The methods we use to value these contracts are those that we believe market participants would use in determining exchange prices with respect to our contracts.

We value equity index put option contracts based on the Black-Scholes option valuation model. Inputs to this model include current index price, contract duration, dividend and interest rate inputs (including a Berkshire non-performance input) which are observable. However, we believe that the valuation of long-duration options using any model is inherently subjective, given the lack of observable transactions and prices, and acceptable values may be subject to wide ranges. Expected volatility inputs represent our expectations after considering the remaining duration of each contract and that the contracts will remain outstanding until the expiration dates without offsetting transactions occurring in the interim. Increases or decreases in the volatility inputs will produce increases or decreases in the fair values of the liabilities.

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Goodwill and other intangible assets

3 Months Ended

Mar. 31, 2014

Goodwill and other intangible assets

Note 12. Goodwill and other intangible assets

A reconciliation of the change in the carrying value of goodwill is as follows (in millions).

	March 31, 2014		December 31, 2013
Balance at beginning of year	$	57,011	$	54,523
Acquisitions of businesses		1,236		2,732
Other, including foreign currency translation		17		(244	)
Balance at end of period	$	58,264	$	57,011

Intangible assets other than goodwill are included in other assets and are summarized as follows (in millions).

	March 31, 2014				December 31, 2013
	Gross carrying amount		Accumulated amortization		Gross carrying amount		Accumulated amortization
Insurance and other	$	12,924	$	3,936	$	11,923	$	3,723
Railroad, utilities and energy		2,214		1,309		2,214		1,231
	$	15,138	$	5,245	$	14,137	$	4,954
Trademarks and trade names	$	2,988	$	365	$	2,750	$	340
Patents and technology		5,667		2,771		5,173		2,626
Customer relationships		4,880		1,618		4,690		1,518
Other		1,603		491		1,524		470
	$	15,138	$	5,245	$	14,137	$	4,954

Amortization expense was $280 million for the first quarter of 2014 and $264 million for the first quarter of 2013. Intangible assets with indefinite lives as of March 31, 2014 and December 31, 2013 were $2,457 million and $2,221 million, respectively.

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Contingencies and Commitments - Narrative (Detail) In Billions, unless otherwise specified			3 Months Ended
	May 01, 2014 Berkshire Hathaway Energy [Member] AltaLink [Member] Subsequent Event [Member] USD ($)	May 01, 2014 Berkshire Hathaway Energy [Member] AltaLink [Member] Subsequent Event [Member] CAD	Mar. 31, 2014 Berkshire Hathaway Insurance Group [Member]	Mar. 31, 2014 Berkshire Hathaway Insurance Group [Member] Surety bonds [Member] USD ($)	Mar. 31, 2014 Berkadia Commercial Mortgage (investee) [Member] USD ($)	Mar. 31, 2014 Leucadia National Corporation (venture partner) [Member] Berkadia Commercial Mortgage (investee) [Member]
Commitments and Contingencies [Line Items]
Voting interest in investee					50.00%	50.00%
Guarantee obligation, maximum amount of exposure				$ 2.5
Reimbursement rate from joint venture partner of Company's surety bond claim losses			50.00%
Commercial paper outstanding					2.47
Ownership percentage to be acquired	100.00%	100.00%
Cash committed to be paid for a potential business acquisition	$ 2.9	3.2

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Investment gains/losses

3 Months Ended

Mar. 31, 2014

Investment gains/losses

Note 8. Investment gains/losses

Investment gains/losses are summarized below (in millions).

	First Quarter
	2014			2013
Fixed maturity securities —
Gross gains from sales and other disposals	$	190		$	15
Gross losses from sales and other disposals		(29	)		(54	)
Equity securities —
Gross gains from sales and other disposals		1,004			109
Gross losses from sales and other disposals		—			(1	)
Other-than-temporary impairments		(19	)		(85	)
Other		(15	)		521
	$	1,131		$	505

Investment gains/losses are reflected in the Consolidated Statements of Earnings as follows.

Insurance and other	$	1,059	$	434
Finance and financial products		72		71
	$	1,131	$	505

Gains from disposals of equity securities in the first quarter of 2014 included a non-cash holding gain of $949 million realized on the exchange of PSX common stock in connection with the acquisition of PSPI, which was completed February 25, 2014. The holding gain represents the excess of the fair value of the PSX stock exchanged over its cost basis. See Note 3.

We record investments in equity and fixed maturity securities classified as available-for-sale at fair value and record the difference between fair value and cost in other comprehensive income. Other-than-temporary impairment charges recognized in earnings with respect to such investments represent reductions in the cost basis of the investments, but not the carrying values. Accordingly, these charges are offset by a corresponding credit to other comprehensive income and therefore have no net effect on shareholders’ equity as of the balance sheet date.

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Investment gains/losses (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Gain (Loss) on Investments [Line Items]
Other-than-temporary impairments	$ (19)	$ (85)
Investment gains/losses	1,131	505
Fixed Maturities [Member]
Gain (Loss) on Investments [Line Items]
Gross gains from sales and other disposals	190	15
Gross losses from sales and other disposals	(29)	(54)
Equity Securities [Member]
Gain (Loss) on Investments [Line Items]
Gross gains from sales and other disposals	1,004	109
Gross losses from sales and other disposals		(1)
Other Types of Investments [Member]
Gain (Loss) on Investments [Line Items]
Other investment gains/losses	(15)	521
Insurance and Other [Member]
Gain (Loss) on Investments [Line Items]
Investment gains/losses	1,059	434
Finance and Financial Products [Member]
Gain (Loss) on Investments [Line Items]
Investment gains/losses	$ 72	$ 71

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Other investments

3 Months Ended

Mar. 31, 2014

Other investments

Note 6. Other investments

Other investments include preferred stock of Wm. Wrigley Jr. Company (“Wrigley”), The Dow Chemical Company (“Dow”) and Bank of America Corporation (“BAC”) as well as warrants to purchase common stock of BAC. Information concerning each of these investments follows.

In 2008, we acquired $2.1 billion liquidation amount of Wrigley preferred stock in conjunction with Mars’ acquisition of Wrigley. The Wrigley preferred stock is entitled to dividends at a rate of 5% per annum. This investment is included in our Finance and Financial Products businesses.

In 2009, we acquired 3,000,000 shares of Series A Cumulative Convertible Perpetual Preferred Stock of Dow (“Dow Preferred”) for a cost of $3 billion. Each share of the Dow Preferred is convertible into 24.201 shares of Dow common stock (equivalent to a conversion price of $41.32 per share). Beginning in April 2014, Dow shall have the right, at its option, to cause some or all of the Dow Preferred to be converted into Dow common stock at the then applicable conversion rate, if Dow’s common stock price exceeds $53.72 per share for any 20 trading days in a consecutive 30-day window ending on the day before Dow exercises its option. The Dow Preferred is entitled to dividends at a rate of 8.5% per annum. The Dow Preferred is included in our Insurance and Other businesses.

In 2011, we acquired 50,000 shares of 6% Cumulative Perpetual Preferred Stock of BAC (“BAC Preferred”) and warrants to purchase 700,000,000 shares of common stock of BAC (“BAC Warrants”) for a combined cost of $5 billion. The BAC Preferred is currently redeemable at any time by BAC at a price of $105,000 per share ($5.25 billion in aggregate). The BAC Warrants expire in 2021 and are exercisable for an aggregate cost of $5 billion ($7.142857/share). The BAC Preferred and BAC Warrants are included in our Insurance and Other businesses (80%) and our Finance and Financial Products businesses (20%). At the end of 2013, Berkshire agreed to a proposed amendment to the terms of the BAC Preferred. Under the proposed amendment, the BAC Preferred would not be redeemable for a period of five years from the date the amendment is adopted and dividends would no longer be cumulative. The amendment is subject to the approval by a majority of the voting power of BAC’s shareholders for which a shareholder vote is scheduled to take place on May 7, 2014.

Our other investments are classified as available-for-sale and are carried at fair value. In the aggregate, the cost of these investments was $10.0 billion and the fair value was approximately $19.1 billion and $17.9 billion at March 31, 2014 and December 31, 2013, respectively.

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Investments in H.J. Heinz Holding Corporation

3 Months Ended

Mar. 31, 2014

Investments in H.J. Heinz Holding Corporation

Note 7. Investments in H.J. Heinz Holding Corporation

On June 7, 2013, Berkshire and an affiliate of the global investment firm 3G Capital (such affiliate, “3G”), through a newly formed holding company, H.J. Heinz Holding Corporation (“Heinz Holding”), acquired H.J. Heinz Company (“Heinz”). Berkshire and 3G each made equity investments in Heinz Holding, which, together with debt financing obtained by Heinz Holding, was used to acquire all outstanding common stock of Heinz for approximately $23.25 billion in the aggregate.

Heinz is one of the world’s leading marketers and producers of healthy, convenient and affordable foods specializing in ketchup, sauces, meals, soups, snacks and infant nutrition. Heinz is a global family of leading branded products, including Heinz^® Ketchup, sauces, soups, beans, pasta, infant foods, Ore-Ida^® potato products, Weight Watchers^® Smart Ones^® entrées and T.G.I. Friday’s^® snacks.

Berkshire’s investments in Heinz Holding consist of 425 million shares of common stock, warrants to acquire approximately 46 million additional shares of common stock, and cumulative compounding preferred stock (“Preferred Stock”) with a liquidation preference of $8 billion. The aggregate cost of these investments was $12.25 billion. 3G acquired 425 million shares of Heinz Holding common stock for $4.25 billion. In addition, Heinz Holding reserved 39.6 million shares of common stock for issuance under stock options.

The Preferred Stock possesses no voting rights except as required by law or for certain matters specified in the Heinz Holding charter. The Preferred Stock is entitled to dividends at 9% per annum whether or not declared, is senior in priority to the common stock and is callable after June 7, 2016 at the liquidation value plus an applicable premium and any accrued and unpaid dividends. Under the Heinz Holding charter and a shareholders’ agreement entered into as of the acquisition date (the “shareholders’ agreement”), after June 7, 2021, Berkshire can cause Heinz Holding to attempt to sell shares of common stock through public offerings or other issuances (“redemption offerings”), the proceeds of which would be required to be used to redeem any outstanding shares of Preferred Stock. The warrants are exercisable for one cent per share and expire on June 7, 2018.

Berkshire and 3G each currently own 50% of the outstanding shares of common stock and possess equal voting interests in Heinz Holding. Under the shareholders’ agreement, unless and until Heinz Holding engages in a public offering, Berkshire and 3G each must approve all significant transactions and governance matters involving Heinz Holding and Heinz so long as Berkshire and 3G each continue to hold at least 66% of their initial common stock investments, except for (i) the declaration and payment of dividends on the Preferred Stock, and actions related to a Heinz Holding call of the Preferred Stock, for which Berkshire does not have a vote or approval right, and (ii) redemption offerings and redemptions resulting therefrom, which may only be triggered by Berkshire. No dividends may be paid on the common stock if there are any unpaid dividends on the Preferred Stock.

We account for our investments in Heinz Holding common stock and common stock warrants on the equity method. Accordingly, we included our proportionate share of Heinz Holding’s net earnings attributable to common stockholders and other comprehensive income in our Consolidated Statements of Earnings and Comprehensive Income. We account for our investment in Preferred Stock as an equity investment and it is carried at cost in our Consolidated Balance Sheets. Dividends earned in connection with the Preferred Stock and our share of Heinz Holding’s net earnings attributable to common stockholders are included in interest, dividend and other investment income of Insurance and Other in the Consolidated Statements of Earnings.

Summarized consolidated financial information of Heinz Holding and its subsidiaries follows (in millions).

	March 30, 2014		December 29, 2013
Assets	$	38,962	$	38,972
Liabilities		22,461		22,429

	First quarter 2014
Sales	$	2,800
Net earnings	$	195
Preferred stock dividends earned by Berkshire		(180	)
Net earnings attributable to common stockholders	$	15
Earnings attributable to Berkshire *	$	188

* Includes dividends earned plus Berkshire’s share of net earnings attributable to common stockholders.

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Receivables

3 Months Ended

Mar. 31, 2014

Receivables

Note 9. Receivables

Receivables of insurance and other businesses are comprised of the following (in millions).

	March 31, 2014			December 31, 2013
Insurance premiums receivable	$	8,725		$	7,474
Reinsurance recoverable on unpaid losses		3,196			3,055
Trade and other receivables		11,148			10,111
Allowances for uncollectible accounts		(352	)		(360	)
	$	22,717		$	20,280

Loans and finance receivables of finance and financial products businesses are comprised of the following (in millions).

	March 31, 2014			December 31, 2013
Consumer installment loans, commercial loans and finance receivables	$	12,807		$	13,170
Allowances for uncollectible loans		(343	)		(344	)
	$	12,464		$	12,826

Consumer installment loans represented approximately 98% and 95% of the aggregate consumer installment loans, commercial loans and finance receivables as of March 31, 2014 and December 31, 2013, respectively. Allowances for uncollectible loans predominantly related to consumer installment loans. Provisions for loan losses for the first quarter of 2014 and 2013 were $46 million and $66 million, respectively and loan charge-offs, net of recoveries, were $47 million in 2014 and $78 million in 2013. The carrying values of loans were net of unamortized acquisition discounts of $321 million at March 31, 2014 and $406 million at December 31, 2013. At March 31, 2014, approximately 97% of the loan balances were evaluated collectively for impairment, and the remainder was evaluated individually for impairment. As a part of the evaluation process, credit quality indicators are reviewed and loans are designated as performing or non-performing. At March 31, 2014, approximately 98% of the loan balances were determined to be performing and approximately 95% of those balances were current as to payment status.

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Inventories (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Inventory [Line Items]
Raw materials	$ 1,828	$ 1,755
Work in process and other	872	842
Finished manufactured goods	3,430	3,206
Goods acquired for resale	4,115	4,057
Total inventory	$ 10,245	$ 9,860

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Business segment data (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting Information [Line Items]
Revenues	$ 45,453	$ 43,867
Total earnings before income taxes	6,598	7,295
Operating Businesses [Member]
Segment Reporting Information [Line Items]
Revenues	44,008	42,188
Earnings before income taxes from operating businesses	5,291	5,885
Operating Businesses [Member] | Geico [Member]
Segment Reporting Information [Line Items]
Premiums earned	4,884	4,399
Earnings before income taxes from operating businesses	353	266
Operating Businesses [Member] | General Re [Member]
Segment Reporting Information [Line Items]
Premiums earned	1,557	1,469
Earnings before income taxes from operating businesses	80	95
Operating Businesses [Member] | Berkshire Hathaway Reinsurance Group [Member]
Segment Reporting Information [Line Items]
Premiums earned	2,022	2,796
Earnings before income taxes from operating businesses	183	974
Operating Businesses [Member] | Berkshire Hathaway Primary Group [Member]
Segment Reporting Information [Line Items]
Premiums earned	953	713
Earnings before income taxes from operating businesses	99	54
Operating Businesses [Member] | Berkshire Hathaway Insurance Group Investment Income [Member]
Segment Reporting Information [Line Items]
Interest, dividend and other investment income	951	1,001
Earnings before income taxes from operating businesses	946	996
Operating Businesses [Member] | Berkshire Hathaway Insurance Group [Member]
Segment Reporting Information [Line Items]
Revenues	10,367	10,378
Earnings before income taxes from operating businesses	1,661	2,385
Operating Businesses [Member] | BNSF [Member]
Segment Reporting Information [Line Items]
Revenues	5,447	5,284
Earnings before income taxes from operating businesses	1,169	1,289
Operating Businesses [Member] | Finance and Financial Products Reportable Segment [Member]
Segment Reporting Information [Line Items]
Revenues	1,435	1,373
Earnings before income taxes from operating businesses	372	296
Operating Businesses [Member] | Manufacturing Businesses [Member]
Segment Reporting Information [Line Items]
Revenues	8,641	8,161
Earnings before income taxes from operating businesses	1,068	948
Operating Businesses [Member] | McLane Company [Member]
Segment Reporting Information [Line Items]
Revenues	10,454	10,785
Earnings before income taxes from operating businesses	115	132
Operating Businesses [Member] | Berkshire Hathaway Energy [Member]
Segment Reporting Information [Line Items]
Revenues	4,306	3,116
Earnings before income taxes from operating businesses	619	553
Operating Businesses [Member] | Other Businesses [Member]
Segment Reporting Information [Line Items]
Revenues	3,358	3,091
Earnings before income taxes from operating businesses	287	282
Intersegment Eliminations and Other Reconciling Items [Member]
Segment Reporting Information [Line Items]
Investment and derivative gains/losses	1,367	1,711
Revenues	78	(32)
Interest expense	(77)	(72)
Earnings before income taxes from operating businesses	$ 17	$ (229)

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Property, plant and equipment and assets held for lease - Narrative (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Insurance and Other [Member]
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 397	$ 400
Railroad, Utilities and Energy [Member]
Property, Plant and Equipment [Line Items]
Depreciation expense	947	795
Finance and Financial Products [Member]
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 148	$ 142

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Receivables - Narrative (Detail) (Finance and Financial Products [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Consumer installment loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of aggregate consumer installment loans, commercial loans and finance receivables	98.00%		95.00%
Consumer installment loans and finance receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provisions for loan losses	$ 46	$ 66
Loan charge-offs, net of recoveries	47	78
Unamortized acquisition discounts on loans	$ 321		$ 406
Loans and finance receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percent of loan balances evaluated collectively for impairment	97.00%
Percent of loan balances that are performing	98.00%
Percent of loan balances that are current as to payment status	95.00%

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Receivables (Tables)

3 Months Ended

Mar. 31, 2014

Insurance and Other [Member]

Schedule of receivables

Receivables of insurance and other businesses are comprised of the following (in millions).

	March 31, 2014			December 31, 2013
Insurance premiums receivable	$	8,725		$	7,474
Reinsurance recoverable on unpaid losses		3,196			3,055
Trade and other receivables		11,148			10,111
Allowances for uncollectible accounts		(352	)		(360	)
	$	22,717		$	20,280

Finance and Financial Products [Member]

Schedule of receivables

Loans and finance receivables of finance and financial products businesses are comprised of the following (in millions).

	March 31, 2014			December 31, 2013
Consumer installment loans, commercial loans and finance receivables	$	12,807		$	13,170
Allowances for uncollectible loans		(343	)		(344	)
	$	12,464		$	12,826

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Investments in fixed maturity securities - Narrative (Detail) (Fixed Maturities [Member], USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Summary of Investment Holdings [Line Items]
Unrealized losses related to securities that have been in an unrealized loss position for more than 12 months	$ 21	$ 26
Foreign governments [Member] | United Kingdom, Germany, Australia, Canada and The Netherlands [Member]
Summary of Investment Holdings [Line Items]
Percentage of fixed maturity investments by geographic location	75.00%
Foreign governments [Member] | AA or Higher Credit Rating [Member]
Summary of Investment Holdings [Line Items]
Percentage of fixed maturity investments by credit rating	93.00%

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Supplemental cash flow information

3 Months Ended

Mar. 31, 2014

Supplemental cash flow information

Note 14. Supplemental cash flow information

A summary of supplemental cash flow information for the first quarter of 2014 and 2013 is presented in the following table (in millions).

	First Quarter
	2014		2013
Cash paid during the period for:
Income taxes	$	283	$	241
Interest:
Insurance and other businesses		139		119
Railroad, utilities and energy businesses		678		505
Finance and financial products businesses		102		139
Investments in equity securities exchanged in connection with business acquisition		1,350		—
Liabilities assumed in connection with business acquisitions		567		—

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Contingencies and Commitments

3 Months Ended

Mar. 31, 2014

Contingencies and Commitments

Note 19. Contingencies and Commitments

We are parties in a variety of legal actions arising out of the normal course of business. In particular, such legal actions affect our insurance and reinsurance businesses. Such litigation generally seeks to establish liability directly through insurance contracts or indirectly through reinsurance contracts issued by Berkshire subsidiaries. Plaintiffs occasionally seek punitive or exemplary damages. We do not believe that such normal and routine litigation will have a material effect on our financial condition or results of operations. Berkshire and certain of its subsidiaries are also involved in other kinds of legal actions, some of which assert or may assert claims or seek to impose fines and penalties. We believe that any liability that may arise as a result of other pending legal actions will not have a material effect on our consolidated financial condition or results of operations.

Berkshire owns a 50% interest in a joint venture, Berkadia Commercial Mortgage (“Berkadia”) and affiliates, with Leucadia National Corporation (“Leucadia”) having the other 50% interest. Berkadia is a servicer of commercial real estate loans in the U.S., performing primary, master and special servicing functions for U.S. government agency programs, commercial mortgage-backed securities transactions, banks, insurance companies and other financial institutions. A significant source of funding for Berkadia’s operations is through its issuance of commercial paper. Repayment of the commercial paper is supported by a $2.5 billion surety policy issued by a Berkshire insurance subsidiary. Leucadia has agreed to indemnify Berkshire for one-half of any losses incurred under the policy. As of March 31, 2014, the aggregate amount of Berkadia commercial paper outstanding was $2.47 billion.

On May 1, 2014, Berkshire Hathaway Energy entered into a Share Purchase Agreement to acquire 100% of AltaLink, L.P. (“AltaLink”), an indirect wholly-owned subsidiary of SNC-Lavalin Group Inc. for an estimated cash purchase price of C$3.2 billion (approximately US$2.9 billion). We currently expect that the acquisition will be funded with a combination of cash and new Berkshire Hathaway Energy senior unsecured debt. AltaLink is a regulated transmission-only business, headquartered in Calgary, Alberta. The transaction is subject to customary closing conditions, including required approvals, and is expected to be completed by the end of 2014.

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Investments in fixed maturity securities (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Summary of Investment Holdings [Line Items]
Carrying value of fixed maturity securities	$ 29,558	$ 29,353
Fixed Maturities [Member]
Summary of Investment Holdings [Line Items]
Amortized cost of available-for-sale securities	27,183	27,085
Unrealized gains on available-for-sale securities	1,819	1,735
Unrealized losses on available-for-sale securities	(104)	(146)
Carrying value and fair value of available-for-sale securities	28,898	28,674
Amortized cost of fixed maturity securities	27,843	27,764
Unrealized gains on fixed maturity securities	1,833	1,752
Unrealized losses on fixed maturity securities	(104)	(146)
Fair value of fixed maturity securities	29,572	29,370
Carrying value of fixed maturity securities	29,558	29,353
Fixed Maturities [Member] | Wm. Wrigley Jr. Company [Member]
Summary of Investment Holdings [Line Items]
Amortized cost and carrying value of held-to-maturity securities	660	679
Unrealized gains on held-to-maturity securities	14	17
Fair value of held-to-maturity securities	674	696
Fixed Maturities [Member] | U.S. Treasury, U.S. government corporations and agencies [Member]
Summary of Investment Holdings [Line Items]
Amortized cost of available-for-sale securities	2,926	2,650
Unrealized gains on available-for-sale securities	16	16
Unrealized losses on available-for-sale securities	(7)	(8)
Carrying value and fair value of available-for-sale securities	2,935	2,658
Fixed Maturities [Member] | States, municipalities and political subdivisions [Member]
Summary of Investment Holdings [Line Items]
Amortized cost of available-for-sale securities	2,074	2,221
Unrealized gains on available-for-sale securities	113	129
Unrealized losses on available-for-sale securities	(2)	(5)
Carrying value and fair value of available-for-sale securities	2,185	2,345
Fixed Maturities [Member] | Foreign governments [Member]
Summary of Investment Holdings [Line Items]
Amortized cost of available-for-sale securities	12,201	11,001
Unrealized gains on available-for-sale securities	221	182
Unrealized losses on available-for-sale securities	(85)	(110)
Carrying value and fair value of available-for-sale securities	12,337	11,073
Fixed Maturities [Member] | Corporate bonds [Member]
Summary of Investment Holdings [Line Items]
Amortized cost of available-for-sale securities	8,213	9,383
Unrealized gains on available-for-sale securities	1,245	1,190
Unrealized losses on available-for-sale securities	(4)	(15)
Carrying value and fair value of available-for-sale securities	9,454	10,558
Fixed Maturities [Member] | Mortgage-backed securities [Member]
Summary of Investment Holdings [Line Items]
Amortized cost of available-for-sale securities	1,769	1,830
Unrealized gains on available-for-sale securities	224	218
Unrealized losses on available-for-sale securities	(6)	(8)
Carrying value and fair value of available-for-sale securities	$ 1,987	$ 2,040

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Fair value measurements (Tables)

3 Months Ended

Mar. 31, 2014

Financial assets and liabilities measured at fair value on a recurring basis

Our financial assets and liabilities are summarized below as of March 31, 2014 and December 31, 2013 with fair values shown according to the fair value hierarchy (in millions). The carrying values of cash and cash equivalents, accounts receivable and accounts payable, accruals and other liabilities are considered to be reasonable estimates of their fair values.

	Carrying Value			Fair Value			Quoted Prices (Level 1)			Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
March 31, 2014
Investments in fixed maturity securities:
U.S. Treasury, U.S. government corporations and agencies		$	2,935		$	2,935		$	2,366		$	569		$	—
States, municipalities and political subdivisions			2,185			2,185			—			2,185			—
Foreign governments			12,337			12,337			7,344			4,993			—
Corporate bonds			10,114			10,128			—			9,139			989
Mortgage-backed securities			1,987			1,987			—			1,987			—
Investments in equity securities			118,486			118,486			118,418			61			7
Investment in Heinz Holding Preferred Stock			7,710			8,296			—			—			8,296
Other investments			19,143			19,143			—			—			19,143
Loans and finance receivables			12,464			11,561			—			62			11,499
Derivative contract assets (1)			93			93			4			33			56
Derivative contract liabilities:
Railroad, utilities and energy (1)			160			160			—			117			43
Finance and financial products:
Equity index put options			4,800			4,800			—			—			4,800
Credit default			275			275			—			—			275
Notes payable and other borrowings:
Insurance and other			12,448			12,842			—			12,842			—
Railroad, utilities and energy			47,751			52,281			—			52,281			—
Finance and financial products			13,024			13,554			—			12,920			634
December 31, 2013
Investments in fixed maturity securities:
U.S. Treasury, U.S. government corporations and agencies		$	2,658		$	2,658		$	2,184		$	473		$	1
States, municipalities and political subdivisions			2,345			2,345			—			2,345			—
Foreign governments			11,073			11,073			7,467			3,606			—
Corporate bonds			11,237			11,254			—			10,187			1,067
Mortgage-backed securities			2,040			2,040			—			2,040			—
Investments in equity securities			117,505			117,505			117,438			60			7
Investment in Heinz Holding Preferred Stock			7,710			7,971			—			—			7,971
Other investments			17,951			17,951			—			—			17,951
Loans and finance receivables			12,826			12,002			—			454			11,548
Derivative contract assets (1)			87			87			3			15			69
Derivative contract liabilities:
Railroad, utilities and energy (1)			208			208			1			198			9
Finance and financial products:
Equity index put options			4,667			4,667			—			—			4,667
Credit default			648			648			—			—			648
Notes payable and other borrowings:
Insurance and other			12,440			12,655			—			12,655			—
Railroad, utilities and energy			46,655			49,879			—			49,879			—
Finance and financial products			13,129			13,505			—			12,846			659

⁽¹⁾ Assets are included in other assets and liabilities are included in accounts payable, accruals and other liabilities.

Reconciliations of assets and liabilities measured and carried at fair value on a recurring basis with the use of significant unobservable inputs (Level 3)

Reconciliations of assets and liabilities measured and carried at fair value on a recurring basis with the use of significant unobservable inputs (Level 3) for the three months ending March 31, 2014 and 2013 follow (in millions).

	Investments in fixed maturity securities			Investments in equity securities and other investments		Net derivative contract liabilities
Three months ending March 31, 2014
Balance at December 31, 2013	$	372		$	17,958	$	(5,255	)
Gains (losses) included in:
Earnings		—			—		222
Other comprehensive income		—			1,192		3
Regulatory assets and liabilities		—			—		2
Dispositions and settlements		(1	)		—		—
Transfers into (out of) Level 3		(56	)		—		(35	)
Balance at March 31, 2014	$	315		$	19,150	$	(5,063	)
Three months ending March 31, 2013
Balance at December 31, 2012	$	652		$	15,785	$	(7,847	)
Gains (losses) included in:
Earnings		—			520		1,235
Other comprehensive income		(2	)		399		(3	)
Regulatory assets and liabilities		—			—		1
Dispositions and settlements		(1	)		—		(27	)
Transfers into (out of) Level 3		—			—		—
Balance at March 31, 2013	$	649		$	16,704	$	(6,641	)

Fair value assets and liabilities measured on recurring basis, unobservable inputs, additional information

Quantitative information as of March 31, 2014, with respect to assets and liabilities measured and carried at fair value on a recurring basis with the use of significant unobservable inputs (Level 3) follows (in millions).

	Fair value		Principal valuation techniques	Unobservable Inputs	Weighted Average
Other investments:
Preferred stocks		$12,297	Discounted cash flow	Expected duration	6 years
				Discount for transferability restrictions and subordination	97 basis points
Common stock warrants		6,846	Warrant pricing model	Discount for transferability and hedging restrictions	8%
Net derivative liabilities:
Equity index put options		4,800	Option pricing model	Volatility	20%
Credit default-states/municipalities		275	Discounted cash flow	Credit spreads	48 basis points

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Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net earnings	$ 4,773	$ 5,017
Other comprehensive income:
Net change in unrealized appreciation of investments	2,591	9,641
Applicable income taxes	(898)	(3,326)
Reclassification of investment appreciation in net earnings	(1,041)	(504)
Applicable income taxes	364	176
Foreign currency translation	26	(650)
Applicable income taxes	7	51
Prior service cost and actuarial gains/losses of defined benefit pension plans	7	87
Applicable income taxes		(23)
Other, net	(4)	16
Other comprehensive income, net	1,052	5,468
Comprehensive income	5,825	10,485
Comprehensive income attributable to noncontrolling interests	96	101
Comprehensive income attributable to Berkshire Hathaway shareholders	$ 5,729	$ 10,384

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Significant business acquisitions

3 Months Ended

Mar. 31, 2014

Significant business acquisitions

Note 3. Significant business acquisitions

Our long-held acquisition strategy is to acquire businesses at sensible prices that have consistent earning power, good returns on equity and able and honest management.

On December 19, 2013, Berkshire Hathaway Energy acquired NV Energy, Inc. (“NV Energy”) for cash consideration of approximately $5.6 billion. NV Energy is an energy holding company serving approximately 1.2 million retail electric and 0.2 million retail natural gas customers in Nevada. NV Energy’s principal operating subsidiaries, Nevada Power Company and Sierra Pacific Power Company, are regulated utilities. We accounted for the acquisition pursuant to the acquisition method. NV Energy’s financial results are included in our Consolidated Financial Statements beginning on the acquisition date.

The preliminary values of NV Energy’s identified assets acquired and liabilities assumed and residual goodwill at the date of acquisition are summarized as follows (in millions).

	December 19, 2013
Property, plant and equipment		$	9,550
Goodwill			2,362
Other assets, including cash of $304 million			2,481
Assets acquired		$	14,393
Accounts payable, accruals and other liabilities		$	3,455
Notes payable and other borrowings			5,342
Liabilities assumed		$	8,797
Net assets acquired		$	5,596

On January 1, 2014, we acquired the beverage dispensing and merchandising operations of British engineering company, IMI plc for approximately $1.13 billion. This business was acquired through Marmon. On February 25, 2014, we acquired 100% of the outstanding common stock of Phillips Specialty Products Inc. (“PSPI”) in exchange for 17,422,615 shares of Phillips 66 (“PSX”) common stock with an aggregate fair value of $1.35 billion. PSPI, which has been renamed as Lubrizol Specialty Products Inc. (“LSPI”), provides flow improver products to customers worldwide. At their respective acquisition dates, the aggregate preliminary fair values of the identified assets and liabilities of IMI plc and LSPI were approximately $1.87 billion and $450 million, respectively, and the residual goodwill was approximately $1.06 billion.

The following table sets forth certain unaudited pro forma consolidated earnings data for the first three months of 2013 (in millions, except per share amounts).

Revenues	$	44,685
Net earnings attributable to Berkshire Hathaway shareholders		4,924
Net earnings per equivalent Class A common share attributable to Berkshire Hathaway shareholders		2,997

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Investments in H.J. Heinz Holding Corporation - Narrative (Detail) (Heinz Holding [Member], USD $) In Billions, except Share data, unless otherwise specified		0 Months Ended		3 Months Ended	0 Months Ended		0 Months Ended		3 Months Ended	0 Months Ended	3 Months Ended
	Mar. 31, 2014 3G Capital (venture partner) [Member]	Jun. 07, 2013 Common Stock [Member] 3G Capital (venture partner) [Member]	Mar. 31, 2014 Heinz [Member] Stock Options [Member]	Mar. 31, 2014 Heinz [Member] 3G Capital (venture partner) [Member]	Jun. 07, 2013 Heinz [Member] Common Stock [Member]	Mar. 31, 2014 Berkshire Hathaway (Parent) [Member]	Jun. 07, 2013 Berkshire Hathaway (Parent) [Member] Common Stock [Member]	Mar. 31, 2014 Berkshire Hathaway (Parent) [Member] Warrants Expiring June 7, 2018 [Member]	Mar. 31, 2014 Berkshire Hathaway (Parent) [Member] Cumulative Compounding Preferred Stock [Member]	Jun. 07, 2013 Berkshire Hathaway (Parent) [Member] Common Stock, Cumulative Compounding Preferred Stock and Warrants [Member]	Mar. 31, 2014 Berkshire Hathaway (Parent) [Member] Heinz [Member]
Schedule of Equity Method Investments [Line Items]
Aggregate cash paid for acquiree's equity securities		$ 4.25			$ 23.25
Investment, number of shares purchased		425,000,000					425,000,000
Number of common shares that can be purchased								46,000,000
Investment in preferred stock, liquidation value									8.0
Purchase of preferred stock, common stock and warrants										$ 12.25
Common shares reserved for issuance under options			39,600,000
Investment in preferred stock, stated dividend rate									9.00%
Exercise price for warrants, per share								$ 0.01
Equity method investment ownership percentage	50.00%					50.00%
Minimum percentage of initial common stock investment required to be held to maintain approval rights over significant transactions and governance				66.00%							66.00%

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Accumulated other comprehensive income (Detail) (USD $) In Millions, unless otherwise specified			3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 Portion Attributable to Berkshire Hathaway Shareholders [Member]	Mar. 31, 2013 Portion Attributable to Berkshire Hathaway Shareholders [Member]	Mar. 31, 2014 Unrealized appreciation of investments, net [Member] Portion Attributable to Berkshire Hathaway Shareholders [Member]	Mar. 31, 2013 Unrealized appreciation of investments, net [Member] Portion Attributable to Berkshire Hathaway Shareholders [Member]	Mar. 31, 2014 Foreign currency translation [Member] Portion Attributable to Berkshire Hathaway Shareholders [Member]	Mar. 31, 2013 Foreign currency translation [Member] Portion Attributable to Berkshire Hathaway Shareholders [Member]	Mar. 31, 2014 Prior service and actuarial gains/losses of defined benefit pension plans [Member] Portion Attributable to Berkshire Hathaway Shareholders [Member]	Mar. 31, 2013 Prior service and actuarial gains/losses of defined benefit pension plans [Member] Portion Attributable to Berkshire Hathaway Shareholders [Member]	Mar. 31, 2014 Other AOCI transactions [Member] Portion Attributable to Berkshire Hathaway Shareholders [Member]	Mar. 31, 2013 Other AOCI transactions [Member] Portion Attributable to Berkshire Hathaway Shareholders [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 45,049	$ 44,025	$ 44,025	$ 27,500	$ 44,042	$ 29,254	$ (146)	$ (120)	$ 46	$ (1,601)	$ 83	$ (33)
Other comprehensive income, net before reclassifications			1,709	5,784	1,674	6,308	24	(560)	(7)	24	18	12
Amounts reclassified from accumulated other comprehensive income			(685)	(292)	(677)	(328)			14	34	(22)	2
Net current period other comprehensive income			1,024	5,492	997	5,980	24	(560)	7	58	(4)	14
Ending Balance	$ 45,049	$ 44,025	$ 45,049	$ 32,992	$ 45,039	$ 35,234	$ (122)	$ (680)	$ 53	$ (1,543)	$ 79	$ (19)

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Goodwill and other intangible assets - Intangible assets - Narrative (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 Finite-lived Intangible Assets [Member]	Mar. 31, 2013 Finite-lived Intangible Assets [Member]	Mar. 31, 2014 Unclassified Indefinite-lived Intangible Assets [Member]	Dec. 31, 2013 Unclassified Indefinite-lived Intangible Assets [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Amortization expense	$ 280	$ 264
Intangible assets with indefinite lives, excluding goodwill			$ 2,457	$ 2,221

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Business segment data

3 Months Ended

Mar. 31, 2014

Business segment data

Note 20. Business segment data

Revenues by segment for the first quarter of 2014 and 2013 were as follows (in millions).

	First Quarter
	2014		2013
Operating Businesses:
Insurance group:
Premiums earned:
GEICO	$	4,884	$	4,399
General Re		1,557		1,469
Berkshire Hathaway Reinsurance Group		2,022		2,796
Berkshire Hathaway Primary Group		953		713
Investment income		951		1,001
Total insurance group		10,367		10,378
BNSF		5,447		5,284
Finance and financial products		1,435		1,373
Manufacturing businesses		8,641		8,161
McLane Company		10,454		10,785
Berkshire Hathaway Energy		4,306		3,116
Other businesses		3,358		3,091
		44,008		42,188
Reconciliation of segments to consolidated amount:
Investment and derivative gains/losses		1,367		1,711
Eliminations and other		78		(32	)
	$	45,453	$	43,867

Earnings before income taxes by segment for the first quarter of 2014 and 2013 were as follows (in millions).

	First Quarter
	2014			2013
Operating Businesses:
Insurance group:
Underwriting gain (loss):
GEICO	$	353		$	266
General Re		80			95
Berkshire Hathaway Reinsurance Group		183			974
Berkshire Hathaway Primary Group		99			54
Net investment income		946			996
Total insurance group		1,661			2,385
BNSF		1,169			1,289
Finance and financial products		372			296
Manufacturing businesses		1,068			948
McLane Company		115			132
Berkshire Hathaway Energy		619			553
Other businesses		287			282
		5,291			5,885
Reconciliation of segments to consolidated amount:
Investment and derivative gains/losses		1,367			1,711
Interest expense, excluding interest allocated to operating businesses		(77	)		(72	)
Eliminations and other		17			(229	)
	$	6,598		$	7,295

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Notes payable and other borrowings (Detail) (USD $) In Millions, unless otherwise specified					3 Months Ended			3 Months Ended			3 Months Ended					3 Months Ended			3 Months Ended					3 Months Ended			3 Months Ended
	Mar. 31, 2014 Railroad, Utilities and Energy [Member]	Dec. 31, 2013 Railroad, Utilities and Energy [Member]	Mar. 31, 2014 Railroad, Utilities and Energy [Member] Berkshire Hathaway Energy [Member]	Dec. 31, 2013 Railroad, Utilities and Energy [Member] Berkshire Hathaway Energy [Member]	Mar. 31, 2014 Railroad, Utilities and Energy [Member] Berkshire Hathaway Energy [Member] Debt [Member]	Mar. 31, 2014 Railroad, Utilities and Energy [Member] Berkshire Hathaway Energy Subsidiaries [Member]	Dec. 31, 2013 Railroad, Utilities and Energy [Member] Berkshire Hathaway Energy Subsidiaries [Member]	Mar. 31, 2014 Railroad, Utilities and Energy [Member] Berkshire Hathaway Energy Subsidiaries [Member] Debt [Member]	Mar. 31, 2014 Railroad, Utilities and Energy [Member] BNSF [Member]	Dec. 31, 2013 Railroad, Utilities and Energy [Member] BNSF [Member]	Mar. 31, 2014 Railroad, Utilities and Energy [Member] BNSF [Member] Debt [Member]	Mar. 31, 2014 Insurance and Other [Member]	Dec. 31, 2013 Insurance and Other [Member]	Mar. 31, 2014 Insurance and Other [Member] Berkshire Hathaway (Parent) [Member]	Dec. 31, 2013 Insurance and Other [Member] Berkshire Hathaway (Parent) [Member]	Mar. 31, 2014 Insurance and Other [Member] Berkshire Hathaway (Parent) [Member] Debt [Member]	Mar. 31, 2014 Insurance and Other [Member] Insurance and Other Subsidiaries [Member]	Dec. 31, 2013 Insurance and Other [Member] Insurance and Other Subsidiaries [Member]	Mar. 31, 2014 Insurance and Other [Member] Insurance and Other Subsidiaries [Member] Debt [Member]	Mar. 31, 2014 Finance and Financial Products [Member]	Dec. 31, 2013 Finance and Financial Products [Member]	Mar. 31, 2014 Finance and Financial Products [Member] Berkshire Hathaway Finance Corporation [Member]	Dec. 31, 2013 Finance and Financial Products [Member] Berkshire Hathaway Finance Corporation [Member]	Mar. 31, 2014 Finance and Financial Products [Member] Berkshire Hathaway Finance Corporation [Member] Debt [Member]	Mar. 31, 2014 Finance and Financial Products [Member] Other Finance Subsidiaries [Member]	Dec. 31, 2013 Finance and Financial Products [Member] Other Finance Subsidiaries [Member]	Mar. 31, 2014 Finance and Financial Products [Member] Other Finance Subsidiaries [Member] Debt [Member]
Notes payable and other borrowings [Line Items]
Maturity date, range, start					2017			2014			2014					2014			2014					2014			2014
Maturity date, range, end					2043			2043			2097					2047			2035					2043			2036
Short-term debt, weighted average interest rate																	0.30%
Senior unsecured debt			$ 6,366	$ 6,616
Weighted average interest rate, percentage			5.70%			5.30%			5.20%					2.70%			6.00%					3.30%			4.90%
Notes payable and other borrowings	47,751	46,655				23,436	23,033		17,949	17,006		12,448	12,440	8,305	8,311					13,024	13,129	11,177	11,178		1,847	1,951
Short-term borrowings																	978	949
Other borrowings																	$ 3,165	$ 3,180

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Derivative contracts (Tables) (Finance and Financial Products [Member])

3 Months Ended

Mar. 31, 2014

Finance and Financial Products [Member]

Derivative contracts outstanding

A summary of derivative contracts of our finance and financial products businesses follows (in millions).

	March 31, 2014							December 31, 2013
	Assets		Liabilities		Notional Value			Assets		Liabilities		Notional Value
Equity index put options	$	—	$	4,800	$	32,225	(1)	$	—	$	4,667	$	32,095	(1)
Credit default		—		275		7,792	(2)		—		648		7,792	(2)
Other, principally interest rate and foreign currency		—		20					—		16
	$	—	$	5,095				$	—	$	5,331

⁽¹⁾  Represents the aggregate undiscounted amount payable at the contract expiration dates assuming that the value of the related index is zero at each contract’s expiration date.

⁽²⁾  Represents the maximum undiscounted future value of losses payable under the contracts, if all underlying issuers default and the residual value of the specified obligations is zero.

Derivative gains/losses included in the Consolidated Statements of Earnings

Derivative gains/losses of our finance and financial products businesses included in our Consolidated Statements of Earnings for the first quarter of 2014 and 2013 were as follows (in millions).

	First Quarter
	2014			2013
Equity index put options	$	(132	)	$	1,246
Credit default		373			(14	)
Other, principally interest rate and foreign currency		(5	)		(26	)
	$	236		$	1,206

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Derivative contracts

3 Months Ended

Mar. 31, 2014

Derivative contracts

Note 13. Derivative contracts

Derivative contracts have been entered into primarily by our finance and financial products and our energy businesses. Substantially all of the derivative contracts of our finance and financial products businesses are not designated as hedges for financial reporting purposes. Changes in the fair values of such contracts are reported in earnings as derivative gains/losses. We entered into these contracts with the expectation that the premiums received would exceed the amounts ultimately paid to counterparties. A summary of derivative contracts of our finance and financial products businesses follows (in millions).

	March 31, 2014							December 31, 2013
	Assets		Liabilities		Notional Value			Assets		Liabilities		Notional Value
Equity index put options	$	—	$	4,800	$	32,225	(1)	$	—	$	4,667	$	32,095	(1)
Credit default		—		275		7,792	(2)		—		648		7,792	(2)
Other, principally interest rate and foreign currency		—		20					—		16
	$	—	$	5,095				$	—	$	5,331

⁽¹⁾  Represents the aggregate undiscounted amount payable at the contract expiration dates assuming that the value of the related index is zero at each contract’s expiration date.

⁽²⁾  Represents the maximum undiscounted future value of losses payable under the contracts, if all underlying issuers default and the residual value of the specified obligations is zero.

Derivative gains/losses of our finance and financial products businesses included in our Consolidated Statements of Earnings for the first quarter of 2014 and 2013 were as follows (in millions).

	First Quarter
	2014			2013
Equity index put options	$	(132	)	$	1,246
Credit default		373			(14	)
Other, principally interest rate and foreign currency		(5	)		(26	)
	$	236		$	1,206

We have written no new equity index put option contracts since February 2008. The contracts currently outstanding are European style options written on four major equity indexes. Future payments, if any, under any given contract will be required if the underlying index value is below the strike price at the contract expiration date. We received the premiums on these contracts in full at the contract inception dates and therefore have no counterparty credit risk.

The aggregate intrinsic value (which is the undiscounted liability assuming the contracts are settled based on the index values and foreign currency exchange rates as of the balance sheet date) of our equity index put option contracts was approximately $1.6 billion at March 31, 2014 and $1.7 billion at December 31, 2013. However, these contracts may not be unilaterally terminated or fully settled before the expiration dates which occur between June 2018 and January 2026. Therefore, the ultimate amount of cash basis gains or losses on these contracts will not be determined for many years. The remaining weighted average life of all contracts was approximately 6.75 years at March 31, 2014.

Our remaining credit default contract relates to approximately 500 municipal debt issues with maturities ranging from 2019 to 2054 and has an aggregate notional value of approximately $7.8 billion. The underlying debt issues have a weighted average maturity of approximately 17.5 years. Pursuant to the contract terms, future loss payments, if any, cannot be settled before the maturity dates of the underlying obligations. We have no counterparty credit risk under this contract because all premiums were received at the inception of the contract.

A limited number of our equity index put option contracts contain collateral posting requirements with respect to changes in the fair value or intrinsic value of the contracts and/or a downgrade of Berkshire’s credit ratings. As of March 31, 2014 and December 31, 2013 we did not have any collateral posting requirements. If Berkshire’s credit ratings (currently AA from Standard & Poor’s and Aa2 from Moody’s) are downgraded below either A- by Standard & Poor’s or A3 by Moody’s, additional collateral of up to $1.1 billion could be required to be posted.

Our regulated utility subsidiaries are exposed to variations in the prices of fuel required to generate electricity, wholesale electricity purchased and sold and natural gas supplied for customers. Derivative instruments, including forward purchases and sales, futures, swaps and options, are used to manage a portion of these price risks. Derivative contract assets are included in other assets of railroad, utilities and energy businesses and were $93 million and $87 million as of March 31, 2014 and December 31, 2013, respectively. Derivative contract liabilities are included in accounts payable, accruals and other liabilities of railroad, utilities and energy businesses and were $160 million and $208 million as of March 31, 2014 and December 31, 2013, respectively. Unrealized gains and losses under the contracts of our regulated utilities that are probable of recovery through rates are recorded as regulatory assets or liabilities. Unrealized gains or losses on contracts accounted for as cash flow or fair value hedges are recorded in other comprehensive income or in net earnings, as appropriate.