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 September 30, 2015

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 October 30, 2015:

Class A —	811,129
Class B —	1,248,359,021

BERKSHIRE HATHAWAY INC.

		Page No.
Part I – Financial Information
Item 1.	Financial Statements
	Consolidated Balance Sheets— September 30, 2015 and December 31, 2014		2
	Consolidated Statements of Earnings— Third Quarter and First Nine Months 2015 and 2014		3
	Consolidated Statements of Comprehensive Income— Third Quarter and First Nine Months 2015 and 2014		4
	Consolidated Statements of Changes in Shareholders’ Equity— First Nine Months 2015 and 2014		4
	Consolidated Statements of Cash Flows— First Nine Months 2015 and 2014		5
	Notes to Consolidated Financial Statements		6-24
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		25-42
Item 3.	Quantitative and Qualitative Disclosures About Market Risk		43
Item 4.	Controls and Procedures		43
Part II – Other Information
Item 1.	Legal Proceedings		43
Item 1A.	Risk Factors		43
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds and Issuer Repurchases of Equity Securities		43
Item 3.	Defaults Upon Senior Securities		43
Item 4.	Mine Safety Disclosures		44
Item 5.	Other Information		44
Item 6.	Exhibits		44
Signature			45

1

Part I Financial Information

Item 1. Financial Statements

BERKSHIRE HATHAWAY INC.

and Subsidiaries

CONSOLIDATED BALANCE SHEETS

(dollars in millions)

	September 30,     2015			December 31,     2014
	(Unaudited)
ASSETS
Insurance and Other:
Cash and cash equivalents		$	56,166		$	57,974
Investments:
Fixed maturity securities			27,119			27,397
Equity securities			106,104			115,529
Other			15,011			16,346
Investments in The Kraft Heinz Company			23,526			11,660
Receivables			24,484			21,852
Inventories			11,995			10,236
Property, plant and equipment			15,465			14,153
Goodwill			37,133			34,959
Other			23,906			23,763
			340,909			333,869
Railroad, Utilities and Energy:
Cash and cash equivalents			4,691			3,001
Property, plant and equipment			118,577			115,054
Goodwill			24,231			24,418
Other			17,445			16,343
			164,944			158,816
Finance and Financial Products:
Cash and cash equivalents			5,403			2,294
Investments in equity and fixed maturity securities			3,040			1,299
Other investments			5,565			5,978
Loans and finance receivables			12,686			12,566
Property, plant and equipment and assets held for lease			9,291			8,037
Goodwill			1,328			1,337
Other			2,302			1,990
			39,615			33,501
		$	545,468		$	526,186
LIABILITIES AND SHAREHOLDERS’ EQUITY
Insurance and Other:
Losses and loss adjustment expenses		$	72,279		$	71,477
Unearned premiums			14,254			11,944
Life, annuity and health insurance benefits			14,266			13,261
Accounts payable, accruals and other liabilities			24,573			23,307
Notes payable and other borrowings			14,556			11,894
			139,928			131,883
Railroad, Utilities and Energy:
Accounts payable, accruals and other liabilities			15,204			15,595
Notes payable and other borrowings			57,872			55,579
			73,076			71,174
Finance and Financial Products:
Accounts payable, accruals and other liabilities			1,964			1,321
Derivative contract liabilities			4,430			4,810
Notes payable and other borrowings			12,483			12,736
			18,877			18,867
Income taxes, principally deferred			62,266			61,235
Total liabilities			294,147			283,159
Shareholders’ equity:
Common stock			8			8
Capital in excess of par value			35,610			35,573
Accumulated other comprehensive income			32,203			42,732
Retained earnings			182,225			163,620
Treasury stock, at cost			(1,763)			(1,763)
Berkshire Hathaway shareholders’ equity			248,283			240,170
Noncontrolling interests			3,038			2,857
Total shareholders’ equity			251,321			243,027
		$	545,468		$	526,186

See accompanying Notes to Consolidated Financial Statements

2

BERKSHIRE HATHAWAY INC.

and Subsidiaries

CONSOLIDATED STATEMENTS OF EARNINGS

(dollars in millions except per share amounts)

	Third Quarter				First Nine Months
	2015		2014		2015		2014
	(Unaudited)				(Unaudited)
Revenues:
Insurance and Other:
Insurance premiums earned	$	10,514	$	12,717	$	30,454	$	31,456
Sales and service revenues		27,436		25,078		80,169		72,252
Interest, dividend and other investment income		1,132		1,171		3,758		3,909
Investment gains/losses		8,339		(376)		8,571		3,049
		47,421		38,590		122,952		110,666
Railroad, Utilities and Energy:
Revenues		10,697		10,697		30,454		30,296
Finance and Financial Products:
Sales and service revenues		1,379		1,322		3,984		3,732
Interest, dividend and other investment income		329		332		1,077		999
Investment gains/losses		(73)		—		154		72
Derivative gains/losses		(764)		258		380		649
		871		1,912		5,595		5,452
		58,989		51,199		159,001		146,414
Costs and expenses:
Insurance and Other:
Insurance losses and loss adjustment expenses		6,831		8,791		19,524		19,923
Life, annuity and health insurance benefits		1,165		1,355		4,083		3,844
Insurance underwriting expenses		1,875		1,596		5,505		5,361
Cost of sales and services		22,297		20,410		65,145		58,610
Selling, general and administrative expenses		3,721		2,991		10,177		8,845
Interest expense		88		109		449		323
		35,977		35,252		104,883		96,906
Railroad, Utilities and Energy:
Cost of sales and operating expenses		7,018		7,383		20,985		21,957
Interest expense		672		597		1,957		1,753
		7,690		7,980		22,942		23,710
Finance and Financial Products:
Cost of sales and services		736		713		2,134		2,043
Selling, general and administrative expenses		409		393		1,176		1,144
Interest expense		105		111		301		347
		1,250		1,217		3,611		3,534
		44,917		44,449		131,436		124,150
Earnings before income taxes		14,072		6,750		27,565		22,264
Income tax expense		4,545		2,029		8,698		6,312
Net earnings		9,527		4,721		18,867		15,952
Less: Earnings attributable to noncontrolling interests		99		104		262		235
Net earnings attributable to Berkshire Hathaway shareholders	$	9,428	$	4,617	$	18,605	$	15,717
Average common shares outstanding *		1,643,316		1,642,558		1,643,118		1,643,657
Net earnings per share attributable to Berkshire Hathaway shareholders *	$	5,737	$	2,811	$	11,323	$	9,562

  * 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)

	Third Quarter						First Nine Months
	2015			2014			2015			2014
	(Unaudited)						(Unaudited)
Net earnings	$	9,527		$	4,721		$	18,867		$	15,952
Other comprehensive income:
Net change in unrealized appreciation of investments		(8,623	)		(601	)		(12,185	)		4,629
Applicable income taxes		2,957			174			4,237			(1,662	)
Reclassification of investment appreciation in net earnings		(1,586	)		417			(1,781	)		(3,032	)
Applicable income taxes		555			(146	)		623			1,061
Foreign currency translation		(716	)		(1,226	)		(1,499	)		(846	)
Applicable income taxes		(11	)		101			(30	)		31
Prior service cost and actuarial gains/losses of defined benefit pension plans		247			39			252			30
Applicable income taxes		(85	)		(7	)		(87	)		(2	)
Other, net		(4	)		2			(104	)		(27	)
Other comprehensive income, net		(7,266	)		(1,247	)		(10,574	)		182
Comprehensive income		2,261			3,474			8,293			16,134
Comprehensive income attributable to noncontrolling interests		47			92			217			256
Comprehensive income attributable to Berkshire Hathaway shareholders	$	2,214		$	3,382		$	8,076		$	15,878

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY

(Unaudited)

(dollars in millions)

	Berkshire Hathaway shareholders’ equity
	Common stock     and capital in     excess of par     value				Accumulated     other     comprehensive     income				Retained   earnings			Treasury stock				Non-   controlling   interests				Total
Balance at December 31, 2013		$	35,480			$	44,025			$	143,748		$	(1,363	)		$	2,595			$	224,485
Net earnings			—				—				15,717			—				235				15,952
Other comprehensive income, net			—				161				—			—				21				182
Issuance (acquisition) of common stock			106				—				—			(400	)			—				(294	)
Transactions with noncontrolling interests			(18	)			—				—			—				(5	)			(23	)
Balance at September 30, 2014		$	35,568			$	44,186			$	159,465		$	(1,763	)		$	2,846			$	240,302
Balance at December 31, 2014		$	35,581			$	42,732			$	163,620		$	(1,763	)		$	2,857			$	243,027
Net earnings			—				—				18,605			—				262				18,867
Other comprehensive income, net			—				(10,529	)			—			—				(45	)			(10,574	)
Issuance of common stock			63				—				—			—				—				63
Transactions with noncontrolling interests			(26	)			—				—			—				(36	)			(62	)
Balance at September 30, 2015		$	35,618			$	32,203			$	182,225		$	(1,763	)		$	3,038			$	251,321

See accompanying Notes to Consolidated Financial Statements

4

BERKSHIRE HATHAWAY INC.

and Subsidiaries

CONSOLIDATED STATEMENTS OF CASH FLOWS

(dollars in millions)

	First Nine Months
	2015			2014
	(Unaudited)
Cash flows from operating activities:
Net earnings	$	18,867			$15,952
Adjustments to reconcile net earnings to operating cash flows:
Investment gains/losses		(8,725	)		(3,121	)
Depreciation and amortization		5,801			5,436
Other		620			(369	)
Changes in operating assets and liabilities:
Losses and loss adjustment expenses		1,195			6,731
Deferred charges reinsurance assumed		369			(3,162	)
Unearned premiums		2,311			1,982
Receivables and originated loans		(3,021	)		(3,061	)
Derivative contract assets and liabilities		(296	)		(663	)
Income taxes		5,954			2,700
Other		1,080			1,732
Net cash flows from operating activities		24,155			24,157
Cash flows from investing activities:
Purchases of fixed maturity securities		(5,365	)		(5,775	)
Purchases of equity securities		(8,809	)		(4,389	)
Investments in The Kraft Heinz Company and other investments		(5,258	)		—
Sales of fixed maturity securities		791			916
Redemptions and maturities of fixed maturity securities		4,421			4,722
Sales and redemptions of equity securities		5,755			3,803
Purchases of loans and finance receivables		(144	)		(162	)
Collections of loans and finance receivables		345			770
Acquisitions of businesses, net of cash acquired		(4,802	)		(1,069	)
Purchases of property, plant and equipment		(11,803	)		(10,172	)
Other		21			390
Net cash flows from investing activities		(24,848	)		(10,966	)
Cash flows from financing activities:
Proceeds from borrowings of insurance and other businesses		3,271			826
Proceeds from borrowings of railroad, utilities and energy businesses		4,468			4,272
Proceeds from borrowings of finance businesses		998			1,148
Repayments of borrowings of insurance and other businesses		(1,875	)		(809	)
Repayments of borrowings of railroad, utilities and energy businesses		(1,050	)		(1,745	)
Repayments of borrowings of finance businesses		(1,254	)		(1,488	)
Change in short term borrowings, net		(508	)		222
Acquisitions of noncontrolling interests		(71	)		(1,288	)
Other		(181	)		38
Net cash flows from financing activities		3,798			1,176
Effects of foreign currency exchange rate changes		(114	)		(173	)
Increase in cash and cash equivalents		2,991			14,194
Cash and cash equivalents at beginning of year *		63,269			48,186
Cash and cash equivalents at end of third quarter *	$	66,260			$62,380
* Cash and cash equivalents are comprised of the following:
Beginning of year—
Insurance and Other	$	57,974		$	42,433
Railroad, Utilities and Energy		3,001			3,400
Finance and Financial Products		2,294			2,353
	$	63,269		$	48,186
End of third quarter—
Insurance and Other	$	56,166			$55,834
Railroad, Utilities and Energy		4,691			3,951
Finance and Financial Products		5,403			2,595
	$	66,260			$62,380

See accompanying Notes to Consolidated Financial Statements

5

BERKSHIRE HATHAWAY INC.

and Subsidiaries

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

September 30, 2015

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”) which includes 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.

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 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 values of liabilities associated with derivative contracts can cause significant variations in periodic net earnings.

Note 2. New accounting pronouncements

In April 2015, the FASB issued ASU 2015-05 “Intangibles—Goodwill and Other—Internal-Use Software,” which clarifies that software licenses contained in a cloud computing arrangement should be capitalized if the customer has the right to take possession of the software and the ability to run the software outside of the cloud computing arrangement. ASU 2015-05 is effective for annual periods beginning after December 15, 2015 and may be adopted prospectively or retrospectively. Early adoption is permitted. In April 2015, the FASB also issued ASU 2015-03 “Interest—Imputation of Interest,” which requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, instead of as an asset. The recognition and measurement guidance for debt issuance costs under current GAAP is not affected by this pronouncement. ASU 2015-03 is effective for reporting periods beginning after December 15, 2015 and should be adopted retrospectively. Early adoption is permitted. We do not expect that the adoption of ASU 2015-05 and ASU 2015-03 will have a material impact on our Consolidated Financial Statements.

In May 2014, the FASB issued ASU 2014-09 “Revenue from Contracts with Customers.” ASU 2014-09 applies to contracts with customers, excluding, most notably, insurance and leasing contracts. ASU 2014-09 prescribes a framework for accounting for revenues from contracts within its scope, including (a) identification of the contract, (b) identification of the performance obligations under the contract, (c) determination of the transaction price, (d) allocation of the transaction price to the identified performance obligations and (e) recognition of revenues as the identified performance obligations are satisfied. ASU 2014-09 also prescribes additional disclosures and financial statement presentations. In August 2015, the FASB deferred the effective date of ASU 2014-09 to reporting periods beginning after December 15, 2017. Early adoption is permitted for reporting periods beginning after December 15, 2016. ASU 2014-09 may be adopted retrospectively or under a modified retrospective method where the cumulative effect is recognized at the date of initial application. We are evaluating the effect that the adoption of ASU 2014-09 will have on our Consolidated Financial Statements.

In May 2015, the FASB issued ASU 2015-09 “Financial Services—Insurance—Disclosures about Short-Duration Contracts,” which requires additional disclosures in annual and interim reporting periods by insurance entities regarding liabilities for unpaid claims and claim adjustment expenses, and any changes in assumptions or methodologies for calculations of such liabilities. ASU 2015-09 is effective for annual periods beginning after December 15, 2015 and interim periods beginning after December 15, 2016. Early adoption is permitted. We are evaluating the effect that the adoption of ASU 2015-09 will have on our Consolidated Financial Statements.

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. Financial results attributable to business acquisitions are included in our Consolidated Financial Statements beginning on their respective acquisition dates.

In the first quarter of 2015, Berkshire acquired controlling interests in the Van Tuyl Group. The Van Tuyl Group (now named Berkshire Hathaway Automotive) included 81 automotive dealerships located in 10 states as well as two related insurance businesses, two auto auctions and a manufacturer of automotive fluid maintenance products. In addition to selling new and pre-owned automobiles, the Berkshire Hathaway Automotive group offers repair and other services and products, including extended warranty services and other automotive protection plans. Consideration paid for the acquisition was $4.1 billion. On December 1, 2014, Berkshire Hathaway Energy Company acquired AltaLink, L.P. (“AltaLink”) for a cash purchase price of C$3.1 billion (approximately $2.7 billion). AltaLink is a regulated electric transmission-only business, headquartered in Calgary, Alberta. The goodwill related to the AltaLink acquisition is not amortizable for income tax purposes, while substantially all of the goodwill related to Berkshire Hathaway Automotive is expected to be amortizable for income tax purposes.

Preliminary fair values of identified assets acquired and liabilities assumed and residual goodwill at their respective acquisition dates are summarized as follows (in millions).

	Berkshire Hathaway Automotive		AltaLink
Cash and investments		$    1,274		$         15
Inventories		1,209		—
Property, plant and equipment		1,034		5,610
Goodwill		1,719		1,731
Other assets		1,401		287
Assets acquired		$    6,637		$    7,643
Accounts payable, accruals and other liabilities		$    1,396		$    1,064
Notes payable and other borrowings		1,129		3,851
Liabilities assumed		$    2,525		$    4,915
Net assets		$    4,112		$    2,728

The following table sets forth certain unaudited pro forma consolidated earnings data for the first nine months of 2014 as if the acquisitions discussed previously were consummated on the same terms at the beginning of the year preceding their respective acquisition dates (in millions, except the per share amount). Pro forma data for the first nine months of 2015 was not materially different from the amounts reflected in the Consolidated Statement of Earnings.

	First nine months  2014
Revenues		$	153,079
Net earnings attributable to Berkshire Hathaway shareholders			15,838
Net earnings per equivalent Class A common share attributable to Berkshire Hathaway shareholders			9,636

7

Notes to Consolidated Financial Statements (Continued)

Note 4. Investments in fixed maturity securities

Investments in securities with fixed maturities as of September 30, 2015 and December 31, 2014 are summarized by type below (in millions).

	Amortized Cost			Unrealized Gains			Unrealized Losses				Fair Value
September 30, 2015
U.S. Treasury, U.S. government corporations and agencies		$	3,796		$	24		$	(1	)		$	3,819
States, municipalities and political subdivisions			1,788			82			(2	)			1,868
Foreign governments			11,415			306			(77	)			11,644
Corporate bonds			7,359			778			(21	)			8,116
Mortgage-backed securities			1,526			191			(4	)			1,713
		$	25,884		$	1,381		$	(105	)		$	27,160
December 31, 2014
U.S. Treasury, U.S. government corporations and agencies		$	2,921		$	14		$	(5	)		$	2,930
States, municipalities and political subdivisions			1,820			93			(1	)			1,912
Foreign governments			12,023			373			(126	)			12,270
Corporate bonds			7,704			1,072			(5	)			8,771
Mortgage-backed securities			1,555			202			(4	)			1,753
		$	26,023		$	1,754		$	(141	)		$	27,636

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

	September 30, 2015			December 31, 2014
Insurance and other		$	27,119		$	27,397
Finance and financial products			41			239
		$	27,160		$	27,636

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 September 30, 2015, approximately 94% of foreign government holdings were rated AA or higher by at least one of the major rating agencies. Approximately 75% of foreign government holdings were issued or guaranteed by the United Kingdom, Germany, Australia, Canada or The Netherlands. Unrealized losses on all fixed maturity investments in a continuous unrealized loss position for more than twelve consecutive months were $10 million as of September 30, 2015 and $15 million as of December 31, 2014.

The amortized cost and estimated fair value of securities with fixed maturities at September 30, 2015 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		$8,103		$11,635		$1,897		$2,723		$1,526		$25,884
Fair value		8,112		12,134		2,024		3,177		1,713		27,160

8

Notes to Consolidated Financial Statements (Continued)

Note 5. Investments in equity securities

Investments in equity securities as of September 30, 2015 and December 31, 2014 are summarized based on the primary industry of the investee in the table below (in millions).

	Cost Basis			Unrealized Gains			Unrealized Losses				Fair Value
September 30, 2015 *
Banks, insurance and finance		$	21,587		$	27,358		$	(86	)		$	48,859
Consumer products			6,893			16,620			(5	)			23,508
Commercial, industrial and other			34,567			6,243			(2,889	)			37,921
		$	63,047		$	50,221		$	(2,980	)		$	110,288

  * Approximately 58% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company – $11.2 billion; Wells Fargo & Company – $25.2 billion; International Business Machines Corporation (“IBM”) – $11.7 billion; and The Coca-Cola Company – $16.0 billion).

	Cost Basis			Unrealized Gains			Unrealized Losses				Fair Value
December 31, 2014 *
Banks, insurance and finance		$	22,495		$	33,170		$	—			$	55,665
Consumer products			6,951			18,389			(1	)			25,339
Commercial, industrial and other			28,924			8,578			(1,036	)			36,466
		$	58,370		$	60,137		$	(1,037	)		$	117,470

  * Approximately 59% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company – $14.1 billion; Wells Fargo & Company – $26.5 billion; International Business Machines Corporation (“IBM”) – $12.3 billion; and The Coca-Cola Company – $16.9 billion).

As of September 30, 2015 and December 31, 2014, we concluded that there were no unrealized losses that were other than 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 September 30, 2015 and December 31, 2014, unrealized losses on equity securities in a continuous unrealized loss position for more than twelve consecutive months were $204 million and $65 million, respectively. Unrealized losses at September 30, 2015 included approximately $2.0 billion related to our investment in IBM common stock, which represented 15% of our cost. IBM continues to be profitable and generate significant cash flows. We currently have no intention of disposing of our investment in IBM common stock. We expect that the fair value of our investment in IBM common stock will recover and ultimately exceed our cost.

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

	September 30, 2015			December 31, 2014
Insurance and other		$	106,104		$	115,529
Railroad, utilities and energy *			1,185			881
Finance and financial products			2,999			1,060
		$	110,288		$	117,470

  * Included in other assets.

9

Notes to Consolidated Financial Statements (Continued)

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”), warrants to purchase common stock of BAC and our investments in Restaurant Brands International, Inc. (“RBI”). Other investments are classified as available-for-sale and carried at fair value and are shown in our Consolidated Balance Sheets as follows (in millions).

	Cost				Fair Value
	September 30, 2015		December 31, 2014		September 30, 2015		December 31, 2014
Insurance and other		$9,970		$9,970		$15,011		$16,346
Finance and financial products		3,052		3,052		5,565		5,978
		$13,022		$13,022		$20,576		$22,324

We own $2.1 billion liquidation amount of Wrigley preferred stock that was acquired in conjunction with the Mars Incorporated (“Mars”) acquisition of Wrigley. The Wrigley preferred stock is entitled to dividends at 5% per annum and is subject to certain put and call arrangements during 2016 for up to 50% of our original investment. Beginning in 2021, our then outstanding investment will be subject to annual put and call arrangements. The redemption amounts under the put and call arrangements will be based upon the earnings of Wrigley.

We own 3,000,000 shares of Series A Cumulative Convertible Perpetual Preferred Stock of Dow (“Dow Preferred”) with a liquidation value of $1,000 per share. 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). Dow currently has the option to cause some or all of the Dow Preferred to be converted into Dow common stock at the then applicable conversion rate, if the New York Stock Exchange closing price of its common stock exceeds $53.72 per share for any 20 trading days within a period of 30 consecutive trading days ending on the day before Dow exercises its option. The Dow Preferred is entitled to dividends at a rate of 8.5% per annum.

We own 50,000 shares of 6% Non-Cumulative Perpetual Preferred Stock of BAC (“BAC Preferred”) with a liquidation value of $100,000 per share and warrants to purchase 700,000,000 shares of common stock of BAC (“BAC Warrants”). The BAC Preferred may be redeemed at the option of BAC beginning on May 7, 2019 at a redemption price of $105,000 per share (or $5.25 billion in aggregate). The BAC Warrants expire in 2021 and are exercisable for an additional aggregate cost of $5 billion ($7.142857/share).

On December 12, 2014, we acquired Class A 9% Cumulative Compounding Perpetual Preferred Shares of RBI (“RBI Preferred”) having a stated value of $3 billion and common stock of RBI for an aggregate cost of $3 billion. RBI, domiciled in Canada, is the ultimate parent company of Burger King and Tim Hortons. As of the acquisition date, our combined investment in RBI possessed approximately 14.4% of the voting interests of RBI. The RBI Preferred is entitled to dividends on a cumulative basis of 9% per annum plus an additional amount that is intended to produce an after-tax yield to Berkshire as if the dividends were paid by a U.S.-based company.

Note 7. Investments in The Kraft Heinz Company (formerly 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 Heinz. 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 comprised of 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 initial investments consisted of 425 million shares of Heinz Holding common stock, warrants, which were exercised in June 2015, to acquire approximately 46 million additional shares of common stock at one cent per share, 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 also 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 to its management and directors under equity grants, including stock options.

10

Notes to Consolidated Financial Statements (Continued)

Note 7. Investments in The Kraft Heinz Company (formerly H.J. Heinz Holding Corporation) (Continued)

In March 2015, Heinz Holding and Kraft Foods Group, Inc. (“Kraft”) entered into a merger agreement under which Kraft shareholders were entitled to receive one share of newly issued Heinz Holding common stock for each share of Kraft common stock and a special cash dividend of $16.50 per share. Kraft is one of North America’s largest consumer packaged food and beverage companies, with annual revenues of more than $18 billion. The company’s iconic brands include Kraft, Capri Sun, Jell-O, Kool-Aid, Lunchables, Maxwell House, Oscar Mayer, Philadelphia, Planters and Velveeta.

On July 1, 2015, Berkshire acquired 262.9 million shares of newly issued common stock of Heinz Holding for $5.26 billion and 3G acquired 237.1 million shares of newly issued common stock for $4.74 billion. Immediately thereafter, Heinz Holding executed a reverse stock split at a rate of 0.443332 of a share for each share. Upon completion of these transactions, Berkshire owned approximately 325.4 million shares of Heinz Holding common stock, or 52.5% of the then outstanding shares. The merger transaction closed on July 2, 2015, at which time Heinz Holding was renamed The Kraft Heinz Company (“Kraft Heinz”) and Kraft Heinz issued approximately 593 million new shares of its common stock to the former Kraft shareholders. Following the issuance of these additional shares, Berkshire and 3G owned approximately 51% of the outstanding Kraft Heinz common stock, with Berkshire owning approximately 26.8% and 3G owning 24.2%. Our investments in Kraft Heinz are summarized as follows (in millions).

	Carrying Value
	September 30, 2015			December 31, 2014
Common stock		$	15,816		$	3,950
Preferred Stock			7,710			7,710
		$	23,526		$	11,660

We account for our investment in the common stock of Kraft Heinz on the equity method. We include our proportionate share of 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 the Preferred Stock as an equity investment and it is carried at cost in our Consolidated Balance Sheets. Dividends earned on the Preferred Stock and our share of net earnings or loss attributable to common stockholders are included in interest, dividend and other investment income in our Consolidated Statements of Earnings.

As previously discussed, the issuance of new common stock by Kraft Heinz for Kraft common stock reduced our ownership of Kraft Heinz from approximately 52.5% to 26.8%. Under the equity method of accounting, the issuance of shares by an investee is accounted for by the investor as if the investor had sold a proportionate share of its investment. As a result, we recorded a non-cash pre-tax holding gain of approximately $6.8 billion in the third quarter of 2015, representing the excess of the fair value of Kraft Heinz common stock at the date of the merger over our carrying value associated with the reduction in our ownership of Kraft Heinz.

The Preferred Stock possesses no voting rights except as are required by law or for certain matters. 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. After June 7, 2021, Berkshire can cause Kraft Heinz 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 the Preferred Stock. Kraft Heinz has announced its intention to call the Preferred Stock after June 7, 2016 and prior to June 7, 2017, although it has no obligation to do so.

Summarized consolidated financial information of Kraft Heinz follows (in millions).

	September 27, 2015			December 28, 2014
Assets		$	121,792		$	36,535
Liabilities			54,433			20,850

	Third quarter							First nine months
	2015				2014			2015			2014
Sales		$	6,120			$	2,594		$	11,214		$	8,123
Net earnings (loss)		$	(123	)		$	172		$	(11)		$	494
Preferred Stock dividends			(180	)			(180)			(540)			(540)
Net loss attributable to common shareholders		$	(303	)		$	(8)		$	(551)		$	(46)
Net earnings attributable to Berkshire Hathaway Shareholders *		$	115			$	198		$	315		$	491

  * Includes dividends earned on Preferred Stock and Berkshire’s share of net loss attributable to Kraft Heinz common shareholders, net of applicable income taxes.

11

Notes to Consolidated Financial Statements (Continued)

Note 8. Investment gains/losses

Investment gains/losses, including other-than-temporary impairment (“OTTI”) losses are summarized below (in millions).

	Third Quarter							First Nine Months
	2015			2014				2015			2014
Fixed maturity securities —
Gross gains		$	6		$	4			$	88		$	233
Gross losses			(44)			(25	)			(128)			(73)
Equity securities —
Gross gains			8,407			354				8,855			3,749
Gross losses			(75)			(38	)			(95)			(41)
OTTI losses			(26)			(678	)			(26)			(697)
Other			(2)			7				31			(50)
		$	8,266		$	(376	)		$	8,725		$	3,121

Investment gains in the third quarter and first nine months of 2015 included a non-cash holding gain of approximately $6.8 billion in connection with our investment in Kraft Heinz common stock (see Note 7). Gains from equity securities during the first nine months of 2014 included non-cash holding gains of approximately $2.1 billion from the exchange of Phillips 66 (“PSX”) common stock in connection with the acquisition of Phillips Specialty Products Inc. (subsequently renamed Lubrizol Specialty Products Inc. (“LSPI”)) and the exchange of Graham Holding Company (“GHC”) common stock for WPLG, Inc. (“WPLG”). The PSX/LSPI exchange was completed on February 25, 2014 and the GHC/WPLG exchange was completed on June 30, 2014. These holding gains represented the excess of the respective fair value of the net assets of LSPI and WPLG received over the respective cost basis of the PSX and GHC shares exchanged. In 2014, we recorded an OTTI charge of $678 million related to our investment in equity securities of Tesco PLC.

Note 9. Receivables

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

	September 30, 2015			December 31, 2014
Insurance premiums receivable		$	9,354		$	7,914
Reinsurance recoverable on unpaid losses			3,373			3,116
Trade and other receivables			12,085			11,133
Allowances for uncollectible accounts			(328)			(311	)
		$	24,484		$	21,852

Loans and finance receivables of finance and financial products businesses are summarized as follows (in millions).

	September 30, 2015			December 31, 2014
Loans and finance receivables before allowances and discounts		$	13,123		$	13,150
Allowances for uncollectible loans			(195)			(303	)
Unamortized acquisition discounts			(242)			(281	)
		$	12,686		$	12,566

12

Notes to Consolidated Financial Statements (Continued)

Note 9. Receivables (Continued)

Loans and finance receivables are predominantly installment loans originated or acquired by our manufactured housing business. Provisions for loan losses for the first nine months of 2015 and 2014 were $119 million and $143 million, respectively. Loan charge-offs, net of recoveries, for the first nine months of 2015 and 2014 were $136 million and $157 million, respectively. In 2015, we reclassified $93 million of allowances for uncollectible loans and related installment loan receivables that were in-substance foreclosures or repossessions to other assets. The reclassifications had no impact on earnings or cash flows. At September 30, 2015, approximately 98% of the loan balances were evaluated collectively for impairment. As a part of the evaluation process, credit quality indicators are reviewed and loans are designated as performing or non-performing. At September 30, 2015, approximately 99% of the loan balances were determined to be performing and approximately 95% of the loan balances were current as to payment status.

Note 10. Inventories

Inventories are comprised of the following (in millions).

	September 30,   2015		December 31,   2014
Raw materials		$  1,838		$  1,881
Work in process and other		856		850
Finished manufactured goods		3,503		3,333
Goods acquired for resale		5,798		4,172
		$11,995		$10,236

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

Property, plant and equipment of our insurance and other businesses is summarized below (in millions).

	Range of   estimated useful life	September 30,  2015			December 31,  2014
Land	—		$   1,614			$   1,171
Buildings and improvements	2 – 40 years		7,250			6,600
Machinery and equipment	3 – 25 years		16,673			16,413
Furniture, fixtures and other	2 – 18 years		3,812			3,136
			29,349			27,320
Accumulated depreciation			(13,884	)		(13,167	)
			$  15,465			$  14,153

Depreciation expense of insurance and other businesses for the first nine months of 2015 and 2014 was $1,240 million and $1,202 million, respectively.

Property, plant and equipment of our railroad and our utilities and energy businesses is summarized below (in millions).

	Range of   estimated useful life	September 30,   2015		December 31,   2014
Railroad:
Land	—		$      6,031		$      5,983
Track structure and other roadway	7 – 100 years		44,902		42,588
Locomotives, freight cars and other equipment	6 – 40 years		10,866		9,493
Construction in progress	—		1,257		1,292
Utilities and energy:
Utility generation, distribution and transmission system	5 – 80 years		67,044		64,645
Interstate pipeline assets	3 – 80 years		6,761		6,660
Independent power plants and other assets	3 – 30 years		5,574		5,035
Construction in progress	—		4,160		5,194
			146,595		140,890
Accumulated depreciation			(28,018)		(25,836)
			$  118,577		$  115,054

13

Notes to Consolidated Financial Statements (Continued)

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

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 nine months of 2015 and 2014 was $3,276 million and $2,932 million, respectively.

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

	Range of estimated useful life	September 30,    2015			December 31,   2014
Assets held for lease	5 – 30 years		$   11,222			$    9,810
Land	—		221			227
Buildings, machinery and other	3 – 50 years		1,170			1,179
			12,613			11,216
Accumulated depreciation			(3,322	)		(3,179	)
			$     9,291			$    8,037

Assets held for lease includes railcars, intermodal tank containers, cranes, over-the-road trailers, storage units and furniture. Depreciation expense of the finance and financial products businesses for the first nine months of 2015 and 2014 was $447 million in each period.

Note 12. Goodwill and other intangible assets

The change in the carrying value of goodwill for the first nine months of 2015 and the year ended December 31, 2014 is summarized as follows (in millions).

	September 30,     2015		December 31,     2014
Balance at beginning of year		$  60,714		$57,011
Acquisitions of businesses		2,388		4,006
Other, including foreign currency translation		(410)		(303)
Balance at end of period		$  62,692		$60,714

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

	September 30, 2015				December 31, 2014
	Gross carrying    amount		Accumulated  amortization		Gross carrying  amount		Accumulated  amortization
Insurance and other		$14,783		$5,243		$13,714		$4,476
Railroad, utilities and energy		885		225		2,254		1,551
		$15,668		$5,468		$15,968		$6,027
Trademarks and trade names		$  3,054		$   742		$  3,117		$   599
Patents and technology		4,225		1,992		5,425		3,133
Customer relationships		5,510		2,041		5,603		1,768
Other		2,879		693		1,823		527
		$15,668		$5,468		$15,968		$  6,027

In the first nine months of 2015 and 2014, amortization expense was $837 million and $854 million, respectively. Intangible assets with indefinite lives as of September 30, 2015 and December 31, 2014 were $3,140 million and $2,586 million, respectively.

14

Notes to Consolidated Financial Statements (Continued)

Note 13. Derivative contracts

Derivative contracts have been entered into primarily through our finance and financial products and our energy businesses. Derivative contract liabilities associated with our finance and financial products businesses are concentrated in equity index put option and credit default contracts. A summary of those liabilities and related notional values follows (in millions).

	September 30, 2015							December 31, 2014
	Liabilities			Notional Value				Liabilities			Notional Value
Equity index put options		$	4,188		$	28,239	(1)		$	4,560		$	29,469	(1)
Credit default			242			7,792	(2)			250			7,792	(2)
		$	4,430						$	4,810

⁽¹⁾  Represents the aggregate undiscounted amounts payable assuming that the value of each index is zero at each contract’s expiration date. Certain of these contracts are denominated in foreign currencies. Notional amounts are based on the foreign currency exchange rates as of each balance sheet date.

⁽²⁾  Represents the aggregate undiscounted amounts payable under the contracts assuming all underlying issuers default and the residual value of the specified obligations is zero.

The derivative contracts of our finance and financial products businesses are recorded at fair value and the 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 the derivative gains/losses included in our Consolidated Statements of Earnings for the third quarter and first nine months of 2015 and 2014 follows (in millions).

	Third Quarter					First Nine Months
	2015			2014		2015		2014
Equity index put options	$	(802	)	$	223	$	371	$	156
Credit default		38			35		9		492
Other, principally interest rate and foreign currency		—			—		—		1
	$	(764	)	$	258	$	380	$	649

The equity index put option contracts were written between 2004 and 2008. These contracts are European style options written on four major equity indexes and will expire between June 2018 and January 2026. 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 $1.4 billion at September 30, 2015 and at December 31, 2014. However, these contracts may not be unilaterally terminated or fully settled before the expiration dates. Therefore, the ultimate amount of cash basis gains or losses on these contracts will not be determined for several years. The remaining weighted average life of all contracts was approximately 5.2 years at September 30, 2015.

Our remaining credit default contract was written in 2008 and relates to approximately 500 zero-coupon municipal debt issues with maturities ranging from 2019 to 2054. The underlying debt issues had a weighted average maturity of approximately 16 years on September 30, 2015. Pursuant to the contract terms, future loss payments are required in the event of non-payment by the issuer and non-performance by the primary financial guarantee insurers under their contracts with the issuers. Payments under our contract, if any, are not required prior to the maturity dates of the underlying obligations. The premium was received at the inception of this contract and therefore we have no counterparty credit risk.

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 September 30, 2015 and December 31, 2014, 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, collateral of up to $1.1 billion could be required to be posted.

15

Notes to Consolidated Financial Statements (Continued)

Note 13. Derivative contracts (Continued)

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 $109 million and $108 million as of September 30, 2015 and December 31, 2014, respectively. Derivative contract liabilities are included in accounts payable, accruals and other liabilities of railroad, utilities and energy businesses and were $257 million and $230 million as of September 30, 2015 and December 31, 2014, respectively. Unrealized gains and losses on contracts of our regulated utilities that are probable of recovery or refund 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 nine months of 2015 and 2014 is presented in the following table (in millions).

	First Nine Months
	2015		2014
Cash paid during the period for:
Income taxes		$  2,575		$  3,201
Interest:
Insurance and other businesses		312		321
Railroad, utilities and energy businesses		2,043		1,864
Finance and financial products businesses		274		332
Non-cash investing and financing activities:
Equity securities exchanged in connection with business acquisitions		—		2,478
Liabilities assumed in connection with business acquisitions		2,792		1,459
Treasury stock acquired in connection with business acquisition		—		400

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 September 30, 2015.

	Weighted Average Interest Rate	September 30, 2015		December 31, 2014
Insurance and other:
Issued by Berkshire due 2015-2047	2.2%		$  9,903		$      8,354
Short-term subsidiary borrowings	1.8%		1,909		839
Other subsidiary borrowings due 2015-2044	6.0%		2,744		2,701
			$14,556		$    11,894

In March 2015, Berkshire issued €3.0 billion in senior unsecured notes consisting of €750 million of 0.75% senior notes due in 2023, €1.25 billion of 1.125% senior notes due in 2027 and €1.0 billion of 1.625% senior notes due in 2035. In February 2015, $1.7 billion of Berkshire senior notes matured.

	Weighted Average Interest Rate	September 30, 2015		December 31, 2014
Railroad, utilities and energy:
Issued by Berkshire Hathaway Energy Company (“BHE”) and its subsidiaries:
BHE senior unsecured debt due 2017-2045	5.1%		$  7,860		$    7,860
Subsidiary and other debt due 2015-2064	4.9%		28,130		28,439
Issued by BNSF due 2015-2097	4.9%		21,882		19,280
			$57,872		$  55,579

16

Notes to Consolidated Financial Statements (Continued)

Note 15. Notes payable and other borrowings (Continued)

BHE subsidiary debt represents amounts issued pursuant to separate financing agreements. Substantially all of the assets of certain BHE 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. BNSF’s borrowings are primarily senior unsecured debentures. In the first nine months of 2015, BNSF issued $2.5 billion of senior unsecured debentures consisting of $850 million of debentures due in 2025 and $1.65 billion of debentures due in 2045. These senior unsecured debentures have interest rates ranging from 3.0% to 4.7%. In the second quarter of 2015, BNSF issued $500 million of amortizing debt with a final maturity date of 2028, which is secured with locomotives. As of September 30, 2015, BNSF and BHE and their subsidiaries were in compliance with all applicable debt covenants. Berkshire does not guarantee any debt, borrowings or lines of credit of BNSF, BHE or their subsidiaries.

	Weighted Average   Interest Rate		September 30,  2015			December 31, 2014
Finance and financial products:
Issued by Berkshire Hathaway Finance Corporation (“BHFC”) due 2015-2043		2.7%		$	11,178	$	11,178
Issued by other subsidiaries due 2015-2036		5.3%			1,305		1,558
				$	12,483	$	12,736

In January 2015, BHFC issued $1.0 billion of new senior notes consisting of $400 million floating rate senior notes that mature in 2017 and $600 million floating rate senior notes that mature in 2018, which replaced $1.0 billion of senior notes that matured. The borrowings of BHFC, a wholly owned finance subsidiary of Berkshire, are fully and unconditionally guaranteed by Berkshire.

As of September 30, 2015, our subsidiaries had unused lines of credit and commercial paper capacity aggregating approximately $9.2 billion to support short-term borrowing programs and provide additional liquidity. Such unused lines of credit included about $5.4 billion related to BHE and its subsidiaries. In addition to BHFC’s borrowings, Berkshire has guaranteed other subsidiary borrowings, aggregating approximately $3.3 billion at September 30, 2015. 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.

17

Notes to Consolidated Financial Statements (Continued)

Note 16. Fair value measurements

Our financial assets and liabilities are summarized below as of September 30, 2015 and December 31, 2014 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)
September 30, 2015
Investments in fixed maturity securities:
U.S. Treasury, U.S. government corporations and agencies		$	3,819		$	3,819		$	2,542		$	1,277		$	—
States, municipalities and political subdivisions			1,868			1,868			—			1,868			—
Foreign governments			11,644			11,644			6,982			4,662			—
Corporate bonds			8,116			8,116			—			8,005			111
Mortgage-backed securities			1,713			1,713			—			1,713			—
Investments in equity securities			110,288			110,288			110,250			37			1
Investment in Kraft Heinz common stock			15,816			22,970			22,970			—			—
Investment in Kraft Heinz Preferred Stock			7,710			8,568			—			—			8,568
Other investments			20,576			20,576			303			—			20,273
Loans and finance receivables			12,686			13,067			—			16			13,051
Derivative contract assets (1)			109			109			—			10			99
Derivative contract liabilities:
Railroad, utilities and energy (1)			257			257			12			196			49
Finance and financial products:
Equity index put options			4,188			4,188			—			—			4,188
Credit default			242			242			—			—			242
Notes payable and other borrowings:
Insurance and other			14,556			14,716			—			14,716			—
Railroad, utilities and energy			57,872			63,044			—			63,044			—
Finance and financial products			12,483			12,918			—			12,433			485
December 31, 2014
Investments in fixed maturity securities:
U.S. Treasury, U.S. government corporations and agencies		$	2,930		$	2,930		$	2,264		$	666		$	—
States, municipalities and political subdivisions			1,912			1,912			—			1,912			—
Foreign governments			12,270			12,270			7,981			4,289			—
Corporate bonds			8,771			8,771			—			8,763			8
Mortgage-backed securities			1,753			1,753			—			1,753			—
Investments in equity securities			117,470			117,470			117,424			45			1
Investment in Kraft Heinz Preferred Stock			7,710			8,416			—			—			8,416
Other investments			22,324			22,324			329			—			21,995
Loans and finance receivables			12,566			12,891			—			33			12,858
Derivative contract assets (1)			108			108			1			13			94
Derivative contract liabilities:
Railroad, utilities and energy (1)			230			230			18			169			43
Finance and financial products:
Equity index put options			4,560			4,560			—			—			4,560
Credit default			250			250			—			—			250
Notes payable and other borrowings:
Insurance and other			11,894			12,484			—			12,484			—
Railroad, utilities and energy			55,579			62,802			—			62,802			—
Finance and financial products			12,736			13,417			—			12,846			571

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

18

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 it 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 nine months ending September 30, 2015 and 2014 follow (in millions).

	Investments  in fixed maturity securities				Investments in equity securities and other  investments				Net  derivative  contract liabilities
Nine months ending September 30, 2015
Balance at December 31, 2014		$	8			$	21,996			$	(4,759	)
Gains (losses) included in:
Earnings			—				—				467
Other comprehensive income			—				(1,722	)			(5	)
Regulatory assets and liabilities			—				—				(21	)
Acquisitions, dispositions and settlements			103				—				(65	)
Transfers into/out of Level 3			—				—				3
Balance at September 30, 2015		$	111			$	20,274			$	(4,380	)
Nine months ending September 30, 2014
Balance at December 31, 2013		$	372			$	17,958			$	(5,255	)
Gains (losses) included in:
Earnings			—				—				644
Other comprehensive income			13				1,228				4
Regulatory assets and liabilities			—				—				(3	)
Dispositions and settlements			(1	)			—				(1	)
Transfers into/out of Level 3			(375	)			(6	)			(35	)
Balance at September 30, 2014		$	9			$	19,180			$	(4,646	)

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 fair values of derivative contracts and settlement transactions. Substantially all of the 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 our Consolidated Statements of Comprehensive Income.

19

Notes to Consolidated Financial Statements (Continued)

Note 16. Fair value measurements (Continued)

Quantitative information as of September 30, 2015, 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	$	14,526	Discounted cash flow	Expected duration	7 years
				Discount for transferability  restrictions and subordination	134 basis points
Common stock warrants		5,747	Warrant pricing model	Discount for transferability  and hedging restrictions	8%
Net derivative liabilities:
Equity index put options		4,188	Option pricing model	Volatility	22%
Credit default		242	Discounted cash flow	Credit spreads	31 basis points

Other investments consist of preferred stocks and common stock warrants that we acquired in a few relatively large private placement transactions. These investments are subject to contractual restrictions on transferability and may contain 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. 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 and we have applied discounts with respect to such 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 illiquid and contain contract terms that are not standard in derivatives markets. For example, we are not required to post collateral under most of our contracts and many contracts have relatively long durations. For these and other reasons, we classified these contracts as Level 3. We believe that our valuation methods represent the methods that 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 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 and, given the lack of observable transactions and prices, acceptable values may be subject to wide ranges. Expected volatility inputs represent our expectations, which consider the remaining duration of each contract and assume 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.

20

Notes to Consolidated Financial Statements (Continued)

Note 17. Common stock

Changes in Berkshire’s issued, treasury and outstanding common stock during the first nine months of 2015 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, 2014		838,019		(11,680)		826,339		1,226,265,250		(1,409,762)		1,224,855,488
Conversions of Class A common stock to Class B common stock and exercises of replacement stock options issued in a business acquisition		(15,058)		—		(15,058)		23,255,846		—		23,255,846
Balance at September 30, 2015		822,961		(11,680)		811,281		1,249,521,096		(1,409,762)		1,248,111,334

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 1,643,355 shares outstanding as of September 30, 2015 and 1,642,909 shares outstanding as of December 31, 2014. In addition to our common stock, 1,000,000 shares of preferred stock are authorized, but none are issued and outstanding.

Berkshire’s Board of Directors (“Berkshire’s Board”) has approved a common stock repurchase program under which Berkshire may repurchase its Class A and Class B shares at prices no higher than a 20% premium over the book value of the shares. 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 and cash equivalent holdings below $20 billion. 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 under the program in the first nine months of 2015.

21

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 nine months ending September 30, 2015 and 2014 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
Nine months ending September 30, 2015
Balance at December 31, 2014		$	45,636			$	(1,957	)		$	(1,039)		$	92		$	42,732
Other comprehensive income, net before reclassifications			(7,958	)			(1,602	)			162			(113)			(9,511)
Reclassifications from accumulated other comprehensive income			(1,158	)			128				1			11			(1,018)
Balance at September 30, 2015		$	36,520			$	(3,431	)		$	(876)		$	(10)		$	32,203
Reclassifications from other comprehensive income into net earnings:
Investment gains/losses:
Insurance and other		$	(1,695	)		$	197			$	—		$	—		$	(1,498)
Finance and financial products			(86	)			—				—			—			(86)
Other			—				—				2			18			20
Reclassifications before income taxes			(1,781	)			197				2			18			(1,564)
Applicable income taxes			(623	)			69				1			7			(546)
		$	(1,158	)		$	128			$	1		$	11		$	(1,018)

	Unrealized appreciation of investments, net			Foreign currency translation			Prior service and actuarial gains/losses of defined benefit pension plans			Other				Accumulated other comprehensive income
Nine months ending September 30, 2014
Balance at December 31, 2013		$	44,042		$	(146)		$	46		$	83			$	44,025
Other comprehensive income, net before reclassifications			2,942			(852)			(15)			(5	)			2,070
Reclassifications from accumulated other comprehensive income			(1,971)			47			39			(24	)			(1,909	)
Balance at September 30, 2014		$	45,013		$	(951)		$	70		$	54			$	44,186
Reclassifications from other comprehensive income into net earnings:
Investment gains/losses:
Insurance and other		$	(2,960)		$	—		$	—		$	—			$	(2,960	)
Finance and financial products			(72)			—			—			—				(72	)
Other			—			47			51			(39	)			59
Reclassifications before income taxes			(3,032)			47			51			(39	)			(2,973	)
Applicable income taxes			(1,061)			—			12			(15	)			(1,064	)
		$	(1,971)		$	47		$	39		$	(24	)		$	(1,909	)

22

Notes to Consolidated Financial Statements (Continued)

Note 19. Contingencies and Commitments

We are parties in a variety of legal actions that routinely arise out of the normal course of business, including legal actions seeking 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 currently 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 currently 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.

On August 8, 2015, Berkshire entered into a definitive agreement with Precision Castparts Corp. (“PCC”) to acquire for $235 per share of common stock in cash, all outstanding PCC shares of common stock, other than the shares we already own (about 2.7 million shares or 1.96%), for aggregate consideration of approximately $31.7 billion. A special meeting of PCC shareholders for the purpose of voting on whether or not to approve the agreement has been scheduled for November 19, 2015. The transaction requires approval by a majority of PCC’s outstanding shares. In addition to the approval of PCC shareholders, the closing of the acquisition is subject to clearance under the Hart-Scott-Rodino (“HSR”) Act and competition clearance in certain foreign jurisdictions. Clearance under the HSR Act was obtained on October 5, 2015. It is expected that the remaining competition clearances will be obtained and that the acquisition will be completed no later than the end of the first quarter of 2016.

PCC is a worldwide, diversified manufacturer of complex metal components and products. It serves the aerospace, power, and general industrial markets. PCC is a market leader in manufacturing complex structural investment castings and forged components for aerospace markets, machined airframe components, and highly engineered, critical fasteners for aerospace applications, and in manufacturing airfoil castings for the aerospace and industrial gas turbine markets. PCC also is a leading producer of titanium and nickel superalloy melted and mill products for the aerospace, chemical processing, oil and gas, and pollution control industries, and manufactures extruded seamless pipe, fittings, and forgings for power generation and oil and gas applications.

On November 13, 2014, Berkshire entered into a definitive agreement with The Procter & Gamble Company (“P&G”) whereby it will acquire the Duracell business from P&G. Duracell is a leading manufacturer of high-performance alkaline batteries and is an innovator in renewable power and wireless charging technologies. Pursuant to the agreement, in exchange for a recapitalized Duracell Company, which will include approximately $1.7 billion in cash at closing, P&G will receive shares of P&G common stock currently held by Berkshire subsidiaries which had a fair value at September 30, 2015 of approximately $3.8 billion. The transaction is currently expected to close in the first quarter of 2016.

We own a 50% interest in a joint venture, Berkadia Commercial Mortgage LLC (“Berkadia”), with Leucadia National Corporation (“Leucadia”) owning 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 the 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 us for one-half of any losses incurred under the policy. On September 30, 2015, the aggregate amount of Berkadia commercial paper outstanding was $2.47 billion.

23

Notes to Consolidated Financial Statements (Continued)

Note 20. Business segment data

Revenues by segment for the third quarter and first nine months of 2015 and 2014 were as follows (in millions).

	Third Quarter						First Nine Months
	2015			2014			2015			2014
Operating Businesses:
Insurance group:
Underwriting:
GEICO	$	5,788		$	5,203		$	16,792		$	15,168
General Re		1,405			1,566			4,397			4,733
Berkshire Hathaway Reinsurance Group		1,892			4,809			5,317			8,414
Berkshire Hathaway Primary Group		1,429			1,139			3,948			3,141
Investment income		1,046			957			3,474			3,409
Total insurance group		11,560			13,674			33,928			34,865
BNSF		5,600			5,881			16,571			17,063
Berkshire Hathaway Energy		5,144			4,853			14,018			13,344
McLane Company		12,264			12,151			36,200			34,327
Manufacturing		9,181			9,534			27,568			27,788
Service and retailing		6,151			3,493			16,966			10,456
Finance and financial products		1,725			1,654			5,078			4,731
		51,625			51,240			150,329			142,574
Reconciliation of segments to consolidated amount:
Investment and derivative gains/losses		7,502			(118	)		9,105			3,770
Eliminations and other		(138	)		77			(433	)		70
	$	58,989		$	51,199		$	159,001		$	146,414

Earnings before income taxes by segment for the third quarter and first nine months of 2015 and 2014 were as follows (in millions).

	Third Quarter						First Nine Months
	2015			2014			2015			2014
Operating Businesses:
Insurance group:
Underwriting:
GEICO	$	258		$	264		$	471		$	1,010
General Re		(2	)		126			58			322
Berkshire Hathaway Reinsurance Group		199			443			247			617
Berkshire Hathaway Primary Group		188			143			566			379
Investment income		1,045			950			3,466			3,394
Total insurance group		1,688			1,926			4,808			5,722
BNSF		1,839			1,654			5,047			4,295
Berkshire Hathaway Energy		1,153			1,051			2,398			2,248
McLane Company		106			120			384			361
Manufacturing		1,259			1,337			3,857			3,774
Service and retailing		378			355			1,260			1,095
Finance and financial products		486			453			1,480			1,247
		6,909			6,896			19,234			18,742
Reconciliation of segments to consolidated amount:
Investment and derivative gains/losses		7,502			(118	)		9,105			3,770
Interest expense, not allocated to segments		(83	)		(79	)		(391	)		(233	)
Eliminations and other		(256	)		51			(383	)		(15	)
	$	14,072		$	6,750		$	27,565		$	22,264

24

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

Results of Operations

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

	Third Quarter						First Nine Months
	2015			2014			2015			2014
Insurance – underwriting	$	414		$	629		$	856		$	1,501
Insurance – investment income		840			811			2,692			2,662
Railroad		1,156			1,035			3,164			2,675
Utilities and energy		786			697			1,709			1,524
Manufacturing, service and retailing		1,177			1,224			3,609			3,421
Finance and financial products		303			297			962			815
Investment and derivative gains/losses		4,877			(107	)		5,920			3,129
Other		(125	)		31			(307	)		(10	)
Net earnings attributable to Berkshire Hathaway shareholders	$	9,428		$	4,617		$	18,605		$	15,717

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 our operating businesses. Berkshire’s senior corporate management team participates in and is ultimately 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 accompanying Consolidated Financial Statements) should be read in conjunction with this discussion.

Our insurance businesses generated after-tax earnings from underwriting of $414 million in the third quarter and $856 million in the first nine months of 2015, representing declines from the corresponding 2014 periods. Underwriting earnings in 2015 of GEICO, BHRG and General Re declined from 2014. Our railroad business generated higher after-tax earnings in 2015 compared to 2014. Results in 2015 were positively impacted by improved service levels and lower fuel costs. Our utilities and energy business produced increased after-tax earnings in the first nine months of 2015. Earnings in 2015 benefitted from the inclusion of AltaLink (acquired in December 2014) and an overall lower effective income tax rate. After-tax earnings from our manufacturing, service and retailing businesses in the first nine months of 2015 increased 5.5% in the aggregate over the first nine months of 2014, although earnings in the third quarter of 2015 declined 4% compared to 2014. In the third quarter of 2015, the positive impacts of business acquisitions and higher earnings in our building products businesses were more than offset by lower earnings from certain of our industrial and end-user businesses and our apparel businesses.

After-tax investment and derivative gains/losses in the third quarter and first nine months of 2015 were $4.9 billion and $5.9 billion, respectively, compared to losses of $107 million in the third quarter and gains of $3.1 billion in the first nine months of 2014. In the third quarter and first nine months of 2015, after-tax gains included a non-cash holding gain of approximately $4.4 billion that was realized in connection with our investment in Kraft Heinz common stock. In the first nine months of 2014, we recorded after-tax gains of approximately $2.0 billion related to the exchanges of Phillips 66 and Graham Holdings Company common stock for a specified subsidiary of each of those companies. In 2015, derivative contracts produced after-tax losses of $517 million in the third quarter and after-tax gains of $227 million for the first nine months. In 2014, after-tax gains from our derivative contracts were $168 million in the third quarter and $422 million in the first nine months. We believe that investment and derivative gains/losses are often meaningless in terms of understanding our reported results or evaluating our economic performance. These gains and losses 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 assumed 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.

25

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

Insurance—Underwriting (Continued)

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 performance of underwriting operations without any allocation of investment income or investment gains.

The timing and amount of catastrophe losses can produce significant volatility in our periodic underwriting results, particularly with respect to BHRG and General Re. We define pre-tax catastrophe losses in excess of $100 million from a single event or series of related events as significant. In the third quarter of 2015, we recorded estimated losses of $130 million in connection with a property loss event in China. In the first nine months of 2014, there were no significant catastrophe losses. 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. Actual claim settlements and revised loss estimates will develop over time. Unpaid loss estimates recorded as of the balance sheet date will develop upward or downward in future periods, producing a corresponding decrease or increase to pre-tax underwriting earnings.

Our periodic underwriting results may also include significant foreign currency transaction gains and losses arising primarily from the changes in the valuation of non-U.S. Dollar denominated reinsurance assets and liabilities of our U.S.-based insurance subsidiaries as a result of foreign currency exchange rate fluctuations. Currency exchange rates can be volatile and the resulting impact on our underwriting earnings can be relatively significant.

A key marketing strategy of our insurance businesses is the maintenance of extraordinary capital strength. A measure of capital strength is combined shareholders’ equity determined pursuant to statutory accounting rules (“Statutory Surplus”). Statutory Surplus of our insurance businesses was approximately $129 billion at December 31, 2014. 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. Underwriting results from our insurance businesses are summarized below. Amounts are in millions.

	Third Quarter					First Nine Months
	2015			2014		2015		2014
Underwriting gain (loss) attributable to:
GEICO	$	258		$	264	$	471	$	1,010
General Re		(2	)		126		58		322
Berkshire Hathaway Reinsurance Group		199			443		247		617
Berkshire Hathaway Primary Group		188			143		566		379
Pre-tax underwriting gain		643			976		1,342		2,328
Income taxes and noncontrolling interests		229			347		486		827
Net underwriting gain	$	414		$	629	$	856	$	1,501

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 customer service, with the goal of establishing long-term customer relationships. GEICO’s underwriting results are summarized below. Dollars are in millions.

	Third Quarter								First Nine Months
	2015				2014				2015				2014
	Amount		%		Amount		%		Amount		%		Amount		%
Premiums written	$	6,141			$	5,511			$	17,618			$	15,846
Premiums earned	$	5,788		100.0	$	5,203		100.0	$	16,792		100.0	$	15,168		100.0
Losses and loss adjustment expenses		4,658		80.4		4,070		78.2		13,673		81.4		11,652		76.8
Underwriting expenses		872		15.1		869		16.7		2,648		15.8		2,506		16.5
Total losses and expenses		5,530		95.5		4,939		94.9		16,321		97.2		14,158		93.3
Pre-tax underwriting gain	$	258			$	264			$	471			$	1,010

26

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

Insurance—Underwriting (Continued)

GEICO (Continued)

Premiums written in the third quarter and first nine months of 2015 increased 11.4% and 11.2%, respectively, over premiums written in the comparable 2014 periods. Premiums earned in the third quarter of 2015 were $5.8 billion, an increase of $585 million (11.2%) over 2014 and in the first nine months were $16.8 billion, an increase of $1,624 million (10.7%) over 2014. The increases in premiums reflected growth in voluntary auto policies-in-force (6.1%) and higher average premiums per policy. Voluntary auto new business sales in the first nine months of 2015 exceeded the first nine months of 2014 by 1.5%. Over the first nine months of 2015, our voluntary auto policies-in-force grew by 662,000 policies.

In the third quarter and first nine months of 2015, our pre-tax underwriting gains were $258 million and $471 million, respectively, compared to $264 million and $1,010 million, respectively, in the comparable 2014 periods. In 2015, we are experiencing increases in claims frequencies and severities in several of our major coverages. Our loss ratio, which is the ratio of losses and loss adjustment expenses incurred to premiums earned, for the third quarter and first nine months of 2015 was 80.4% and 81.4%, respectively, as compared to 78.2% and 76.8% in the comparable 2014 periods. As a result, we continue to implement premium rate increases where necessary.

Losses and loss adjustment expenses incurred in the third quarter and first nine months of 2015 were $4.7 billion and $13.7 billion, respectively, representing increases of $588 million (14.4%) and $2,021 million (17.3%), respectively, over the corresponding 2014 periods. Claims frequencies in the first nine months of 2015 increased over 2014 in all major coverages, including property damage and collision coverages (four to six percent range), bodily injury coverage (five to six percent range) and personal injury protection (PIP) coverage (one to two percent range). Average claims severities were also higher in the first nine months of 2015 for property damage and collision coverages (four to five percent range), bodily injury coverage (six to seven percent range) and PIP coverage (two to four percent range).

Underwriting expenses in the third quarter of 2015 were relatively unchanged from the third quarter of 2014, while expenses in the first nine months of 2015 exceeded 2014 by $142 million (5.7%). During 2015, underwriting expenses, most notably advertising and employee-related costs, have grown at a slower rate than premiums. As a result, our expense ratios (underwriting expenses to premiums earned) in 2015 declined 1.6 percentage points in the third quarter and 0.7 percentage points in the first nine months compared to the corresponding 2014 periods.

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.

	Premiums written								Premiums earned								Pre-tax underwriting gain (loss)
	Third Quarter				First Nine Months				Third Quarter				First Nine Months				Third Quarter				First Nine Months
	2015		2014		2015		2014		2015		2014		2015		2014		2015		2014		2015		2014
Property/casualty	$	628	$	756	$	2,307	$	2,796	$	683	$	799	$	2,119	$	2,386	$	(9)	$	94	$	65	$	265
Life/health		722		770		2,274		2,342		722		767		2,278		2,347		7		32		(7)		57
	$	1,350	$	1,526	$	4,581	$	5,138	$	1,405	$	1,566	$	4,397	$	4,733	$	(2)	$	126	$	58	$	322

Property/casualty

In the third quarter and first nine months of 2015, property/casualty premiums written declined $128 million (17%) and $489 million (17%), respectively, while premiums earned decreased $116 million (15%) and $267 million (11%), respectively, as compared to 2014. Adjusting for changes in foreign currency exchange rates, premiums written in the third quarter and first nine months of 2015 declined $79 million (10%) and $256 million (9%), respectively, while premiums earned decreased $60 million (8%) and $72 million (3%), respectively, compared to 2014. Our premium volume declined in both the direct and broker markets worldwide. Insurance industry capacity remains high and price competition in most property/casualty reinsurance markets persists. We continue to decline business when we believe prices are inadequate. However, we remain prepared to write more business when more appropriate prices can be attained relative to the risks assumed.

27

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

Insurance—Underwriting (Continued)

General Re (Continued)

Property/casualty (Continued)

Our property/casualty business produced pre-tax underwriting losses of $9 million in the third quarter and gains of $65 million in the first nine months of 2015 compared to gains of $94 million and $265 million in the third quarter and first nine months of 2014, respectively. In the first nine months of 2015, our property business generated pre-tax underwriting gains of $114 million compared to $330 million in the first nine months of 2014. The comparative decrease in underwriting gains from property business was driven by an increase in the current accident year loss ratio, reflecting a relative increase in reported losses. The property results in 2015 included estimated incurred losses of $44 million from an explosion in Tianjin, China during the third quarter. There were no significant catastrophe losses during the first nine months of 2014. Our property business results in both years benefitted from reductions of estimated losses for prior years’ exposures. The timing and magnitude of catastrophe and large individual losses can produce significant volatility in our periodic underwriting results.

In the first nine months of 2015 and 2014, our casualty/workers’ compensation business produced pre-tax underwriting losses of $49 million and $65 million, respectively. Underwriting results included gains from reductions of estimated losses on prior years’ business of $133 million and $177 million in the first nine months of 2015 and 2014, respectively, which included recurring charges for discount accretion on workers’ compensation liabilities and deferred charge amortization on retroactive reinsurance contracts. Casualty losses tend to be long-tail and it should not be assumed that favorable loss experience in a given period means that the ultimate liability estimates currently established will continue to develop favorably.

Life/health

In the third quarter and first nine months of 2015, life/health premiums earned decreased $45 million (6%) and $69 million (3%), respectively, compared to 2014. However, adjusting for changes in foreign currency exchange rates, premiums earned in 2015 increased $27 million (4%) in the third quarter and $136 million (6%) in the first nine months as compared to 2014. In 2015, life business increased across a number of non-U.S. markets, particularly in Canada and Asia.

Our life/health business produced aggregate pre-tax underwriting gains of $7 million in the third quarter of 2015 and losses of $7 million in the first nine months compared to gains of $32 million and $57 million in the third quarter and first nine months of 2014, respectively. In 2015, our North American operations experienced greater than expected loss activity in the long-term care business and higher frequency and severity of losses in the individual life business. In addition, our international underwriting results were adversely affected in 2015 by an increase in liabilities for life benefits as a result of the reductions of discount rates. Underwriting results for both years also reflected charges attributable to 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, including property catastrophe insurance and reinsurance. The timing and magnitude of catastrophe losses can produce extraordinary volatility in the periodic underwriting results. BHRG also writes retroactive reinsurance, which provides indemnification of losses and loss adjustment expenses with respect to past loss events arising under property/casualty coverages. In addition, BHRG writes life reinsurance and annuity insurance and reinsurance contracts. BHRG’s underwriting results are summarized in the table below. Amounts are in millions.

	Premiums written								Premiums earned								Pre-tax underwriting gain (loss)
	Third Quarter				First Nine Months				Third Quarter				First Nine Months				Third Quarter				First Nine Months
	2015		2014		2015		2014		2015		2014		2015		2014		2015		2014		2015		2014
Property/casualty	$	1,883	$	961	$	3,932	$	3,481	$	1,341	$	1,022	$	3,168	$	3,109	$	435	$	547	$	829	$	1,036
Retroactive reinsurance		1		3,046		4		3,272		1		3,046		4		3,272		(118)		(109)		(375)		(270)
Life and annuity		550		741		2,145		2,033		550		741		2,145		2,033		(118)		5		(207)		(149)
	$	2,434	$	4,748	$	6,081	$	8,786	$	1,892	$	4,809	$	5,317	$	8,414	$	199	$	443	$	247	$	617

28

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

Insurance—Underwriting (Continued)

Berkshire Hathaway Reinsurance Group (Continued)

Property/casualty

Premiums written in the third quarter and first nine months of 2015 increased $922 million (96%) and $451 million (13%), respectively, compared to the same periods in 2014. Premiums earned in the third quarter and first nine months of 2015 increased 31% and 2%, respectively, versus 2014. The premium increases were primarily attributable to a new 10-year, 20% quota-share contract with Insurance Australia Group Ltd. (“IAG”), which became effective on July 1, 2015, partially offset by premium declines in property catastrophe, property quota-share and London facilities business. Our premium volume is generally constrained for most property/casualty coverages, and for property catastrophe coverages in particular, as rates, in our view, are generally inadequate. However, we have the capacity and desire to write substantially more business when appropriate pricing can be obtained.

The property/casualty business generated pre-tax underwriting gains in 2015 of $435 million in the third quarter and $829 million in the first nine months compared to gains of $547 million in the third quarter and $1,036 million in the first nine months of 2014. In the third quarter of 2015, the property/casualty business incurred losses of $86 million from an explosion in Tianjin, China. In the first nine months of 2014, there were no significant catastrophe losses. Underwriting results in 2015 also included foreign currency transaction gains of $165 million in both the third quarter and first nine months of 2015 compared to gains of $227 million in the third quarter and $128 million in the first nine months of 2014. The foreign currency transaction gains relate to periodic revaluation of reinsurance liabilities of certain of our domestic insurance subsidiaries which are denominated in foreign currencies (primarily arising under retroactive reinsurance contracts). Underwriting results in the first nine months of 2015 also reflected lower pre-tax underwriting gains from catastrophe business.

Retroactive reinsurance

Retroactive reinsurance contracts provide indemnification of 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 for 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 in periodic earnings.

Premiums from retroactive reinsurance contracts were not significant in 2015, whereas premiums in the third quarter and first nine months of 2014 included $3 billion from a single contract with Liberty Mutual Insurance Company. Pre-tax underwriting losses from retroactive contracts in the first nine months of 2015 were $375 million compared to $270 million in 2014. The increase in underwriting losses in 2015 was primarily related to amortization of deferred charges on contracts written in the last half of 2014 and from the impact of gains in the first quarter of 2014 from the commutations of two contracts. There were no significant increases or decreases to estimated ultimate losses related to prior years’ contracts during the first nine months of 2015. Gross unpaid losses from retroactive reinsurance contracts were approximately $23.2 billion at September 30, 2015 and $24.3 billion at December 31, 2014. Unamortized deferred charges related to BHRG’s retroactive reinsurance contracts were approximately $7.3 billion at September 30, 2015 and $7.7 billion at December 31, 2014. As previously indicated, the amortization of deferred charge balances will be charged to earnings in the future.

Life and annuity

Life and annuity premiums written and earned in 2015 declined 26% in the third quarter and increased 6% in the first nine months compared with the same periods of 2014. The increase in year-to-date premiums in 2015 was primarily attributable to an increase in annuity business, which included a reinsurance contract written in the second quarter of 2015 that produced an upfront premium of approximately $425 million. Annuity payments under this contract are not expected to begin for several years. Otherwise, premiums from life reinsurance contracts and structured settlement annuities declined as compared to the same period in 2014.

29

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

Insurance—Underwriting (Continued)

Berkshire Hathaway Reinsurance Group (Continued)

Life and annuity (Continued)

In the third quarter and first nine months of 2015, the aggregate life and annuity business produced pre-tax underwriting losses of $118 million and $207 million, respectively, compared to pre-tax gains of $5 million in the third quarter and pre-tax losses of $149 million in the first nine months of 2014. Structured settlement and periodic payment annuity reinsurance contracts produced pre-tax underwriting losses of $6 million in the third quarter and $159 million in the first nine months of 2015, compared to losses of $12 million in the third quarter and $177 million in the first nine months of 2014. Underwriting results of structured settlement and annuity contracts included foreign currency transaction gains of $60 million in the third quarter and $53 million in the first nine months of 2015, compared to gains of $74 million in the third quarter and $34 million in the first nine months of 2014, which were primarily related to the revaluation of liabilities denominated in foreign currencies. The liabilities recorded for structured settlement and annuity contracts are discounted and the periodic underwriting results include recurring charges for the accretion of the discounted liabilities. Aggregate annuity liabilities were approximately $8.4 billion at September 30, 2015 and $7.1 billion at December 31, 2014.

In the third quarter of 2015, our variable annuity guarantee contracts produced pre-tax underwriting losses of $99 million, which partially offset the $132 million of pre-tax gains generated in the first six months of the year. These contracts generated pre-tax gains of $21 million in the third quarter and losses of $14 million in the first nine months of 2014. The losses in the third quarter of 2015 were primarily attributable to the impacts of lower equity markets and interest rates which resulted in increases of our estimated liabilities for guaranteed minimum benefits. Periodic results from these contracts can be volatile reflecting changes in investment markets, which impact the underlying insured exposures. Pre-tax underwriting losses from life reinsurance business in the first nine months of 2015 were $80 million, which included losses in connection with business that was terminated.

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 Group, providers of healthcare malpractice insurance coverages; National Indemnity Company’s primary group (“NICO Primary”), 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 as Berkshire Hathaway Homestate Companies (“BHHC”), providers of commercial multi-line insurance, including workers’ compensation; Berkshire Hathaway Specialty Insurance (“BH Specialty”), which concentrates on providing large scale insurance solutions for commercial property and casualty risks; Applied Underwriters, a provider of integrated workers’ compensation solutions; Berkshire Hathaway GUARD Insurance Companies (“GUARD”), providers of workers’ compensation and commercial property and casualty insurance coverage to small and mid-sized businesses; and Central States Indemnity Company, a provider of credit and Medicare Supplement insurance.

Premiums earned in the first nine months of 2015 and 2014 aggregated $3.95 billion and $3.14 billion, respectively. The increase was primarily attributable to volume increases from BH Specialty, NICO Primary, BHHC and GUARD. The BH Primary insurers produced aggregate pre-tax underwriting gains of $566 million in the first nine months of 2015 and $379 million in 2014. Loss ratios for this group were 59% in the first nine months of 2015 and 61% in 2014. Overall, the claim environment in recent years has been favorable. However, these primary insurers write primarily liability and workers’ compensation coverage, and related claims settlements may occur over lengthy time periods. It should not be assumed that the current claim experience, loss ratios or favorable underwriting results will continue into the future.

Insurance—Investment Income

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

	Third Quarter				First Nine Months
	2015		2014		2015		2014
Investment income before taxes and noncontrolling interests	$	1,045	$	950	$	3,466	$	3,394
Income taxes and noncontrolling interests		205		139		774		732
Net investment income	$	840	$	811	$	2,692	$	2,662

30

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

Insurance—Investment Income (Continued)

Investment income consists of interest and dividends earned on cash and investments of our insurance businesses. Pre-tax investment income in the third quarter and first nine months of 2015 increased $95 million (10%) and $72 million (2%), respectively, compared with the same periods in 2014. The increases were primarily attributable to increased dividends earned from common and preferred stocks, which included dividends earned from our investment in Restaurant Brands International, Inc. 9% Preferred Stock ($3 billion stated value), partially offset by lower interest earned on fixed maturity investments. Our insurance businesses continue to hold significant cash and cash equivalent balances (approximately $42.9 billion as of September 30, 2015) earning very low yields. We believe that maintaining ample liquidity is paramount and we insist on safety over yield with respect to cash and cash equivalents.

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 premium and reinsurance receivables, deferred charges assumed under retroactive reinsurance contracts and deferred policy acquisition costs. Float approximated $86.2 billion at September 30, 2015 and $84.0 billion at December 31, 2014.

A summary of cash and investments held in our insurance businesses follows. Other investments include our investments in The Dow Chemical Company, Bank of America Corporation and Restaurant Brands International, Inc. See Note 6 to the accompanying Consolidated Financial Statements. Amounts are in millions.

	September 30, 2015		December 31,   2014
Cash and cash equivalents	$	42,868		$  42,760
Equity securities		105,559		114,876
Fixed maturity securities		24,526		26,010
Other investments		15,011		16,346
	$	187,964		$199,992

Fixed maturity securities held by our insurance businesses as of September 30, 2015 were as follows. Amounts are in millions.

	Amortized   cost		Unrealized     gains/losses		Carrying   value
U.S. Treasury, U.S. government corporations and agencies	$	3,714	$	22	$	3,736
States, municipalities and political subdivisions		1,665		79		1,744
Foreign governments		9,474		229		9,703
Corporate bonds, investment grade		5,370		466		5,836
Corporate bonds, non-investment grade		1,666		296		1,962
Mortgage-backed securities		1,363		182		1,545
	$	23,252	$	1,274	$	24,526

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.

Railroad (“BNSF”)

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

31

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

Railroad (“BNSF”) (Continued)

	Third Quarter				First Nine Months
	2015		2014		2015		2014
Revenues	$	5,600	$	5,881	$	16,571	$	17,063
Operating expenses:
Compensation and benefits		1,220		1,243		3,826		3,695
Fuel		670		1,123		2,080		3,438
Purchased services		633		637		1,909		1,924
Depreciation and amortization		503		531		1,488		1,569
Equipment rents, materials and other		497		482		1,538		1,529
Total operating expenses		3,523		4,016		10,841		12,155
Interest expense		238		211		683		613
		3,761		4,227		11,524		12,768
Pre-tax earnings		1,839		1,654		5,047		4,295
Income taxes		683		619		1,883		1,620
Net earnings	$	1,156	$	1,035	$	3,164	$	2,675

Consolidated revenues during the third quarter and first nine months of 2015 were approximately $5.6 billion and $16.6 billion, respectively, representing decreases of $281 million (5%) and $492 million (3%), respectively, compared to 2014. Pre-tax earnings in the third quarter and first nine months of 2015 were $1.8 billion and $5.0 billion, increases of $185 million (11%) and $752 million (18%), respectively, over 2014. Results in the third quarter and the first nine months of 2015 benefitted from improved operating performance. Our operating performance in 2014 was substandard as we experienced significant service related challenges over most of the year. We attribute operational improvements in 2015 to capacity added in 2014 and 2015 through capital investments for line expansion, system improvement projects and additional equipment, as well as from new employee hires, other operational initiatives and more favorable winter weather conditions.

The year-to-date decrease in revenues reflected a 5% decline in average revenue per car/unit partially offset by a 1% increase in volumes. The decrease in average revenue per car/unit in 2015 was due to a 50% decline in fuel surcharges ($1.1 billion) versus 2014, primarily due to lower fuel prices, partially offset by an increase in average rates. The impact of lower fuel surcharge revenues affected revenues of all product lines.

In the third quarter and first nine months of 2015, freight revenues from industrial products decreased 13% and 7%, respectively, from 2014 to $1.4 billion and $4.3 billion, respectively. The decreases reflected lower volumes primarily due to the impact of lower crude oil prices on petroleum products and frac sand, as well as lower steel product volume and lower average revenue per car/unit.

Freight revenues from agricultural products increased 4% in the third quarter of 2015 to approximately $1.0 billion and 6% to approximately $3.1 billion in the first nine months of 2015 as compared to revenues in the corresponding 2014 periods. The increases in 2015 were attributable to higher domestic grain shipments, which drove comparative agricultural product volumes up 11% for the third quarter and 7% for the first nine months versus 2014, partially offset by lower average revenue per car/unit.

Freight revenues from coal decreased 6% to $1.2 billion in the third quarter and decreased 3% to $3.6 billion in the first nine months of 2015 from revenues in the corresponding 2014 periods. The decreases were primarily due to lower average rate per car. Coal volumes increased 5% in the third quarter and 4% for the first nine months of 2015 primarily due to higher demand.

Freight revenues from consumer products in the third quarter of 2015 were $1.7 billion, a decline of 3% from 2014, and in the first nine months of 2015 were $4.9 billion, a decline of 6% from 2014. The revenue declines reflected lower average revenue per car/unit, partially offset by volume increases of 5% in the third quarter and 1% for the first nine months of 2015. In the first quarter of 2015, we experienced a decline in international intermodal volume attributable to diversions of freight from U.S. West Coast ports to other import gateways as a result of the port productivity slow-down from port labor disruptions. In the second quarter of 2015, we experienced increased volumes, as port productivity improvements allowed the backlog to clear. The comparative increases in volume continued in the third quarter as a result of demand.

Operating expenses in the third quarter and first nine months of 2015 were $3.5 billion and $10.8 billion, respectively, or decreases of $493 million (12%) and $1,314 million (11%), respectively, compared to the same periods of 2014. In the third quarter of 2015, the ratio of operating expenses to revenues declined 5.4 percentage points to 62.9%, while the ratio for the first nine months declined 5.8 percentage points to 65.4% as compared to 2014.

32

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

Railroad (“BNSF”) (Continued)

Compensation and benefits expenses decreased $23 million (2%) for the third quarter of 2015 as compared to 2014, primarily attributable to reduced overtime and lower training costs. For the first nine months of 2015, compensation and benefits increased $131 million (4%) compared to 2014, primarily due to increased employment levels and wage rates. Fuel expenses declined $453 million (40%) for the third quarter and $1,358 million (39%) for the first nine months of 2015 as compared with the same periods in 2014. The declines reflected significantly lower average fuel prices and improved efficiency, partially offset by higher volumes. In the third quarter and first nine months of 2015, depreciation and amortization expense declined $28 million (5%) and $81 million (5%), respectively, compared to the same periods of 2014. The declines resulted from lower capitalized software amortization expenses, partially offset by increased depreciation expense attributable to increased levels of railroad assets in service.

Interest expense in the third quarter and first nine months of 2015 was $238 million and $683 million, respectively, representing increases of $27 million (13%) and $70 million (11%), respectively, compared to 2014. BNSF funds its capital expenditures with cash flow from operations and new debt issuances. The increased interest expense in 2015 resulted from higher average outstanding debt.

Utilities and Energy (“Berkshire Hathaway Energy Company”)

We hold an 89.9% ownership interest in Berkshire Hathaway Energy Company (“BHE”), which operates an international energy business. BHE’s domestic regulated utility interests are comprised of PacifiCorp, MidAmerican Energy Company (“MEC”), and NV Energy. In Great Britain, BHE subsidiaries operate two regulated electricity distribution businesses referred to as Northern Powergrid. BHE also owns two domestic regulated interstate natural gas pipeline companies. BHE acquired AltaLink, L.P. (“AltaLink”), a regulated electricity transmission-only business in Alberta, Canada, on December 1, 2014. AltaLink’s revenues and earnings in 2015 are included in other energy businesses. In addition, BHE also operates a diversified portfolio of independent power projects and the second-largest residential real estate brokerage firm and one of the largest franchise networks in the United States. Revenues and earnings of BHE are summarized below. Amounts are in millions.

	Third Quarter								First Nine Months
	Revenues				Earnings				Revenues				Earnings
	2015		2014		2015		2014		2015		2014		2015		2014
PacifiCorp	$	1,432	$	1,449	$	354	$	340	$	3,977	$	4,017		$   799	$	832
MidAmerican Energy Company		925		879		165		130		2,702		2,912		328		273
NV Energy		1,130		1,128		340		337		2,688		2,579		529		501
Northern Powergrid		264		307		95		121		852		948		352		406
Natural gas pipelines		198		193		52		44		743		811		277		272
Other energy businesses		446		253		189		121		1,097		455		323		178
Real estate brokerage		749		644		80		61		1,959		1,622		166		101
	$	5,144	$	4,853					$	14,018	$	13,344
Earnings before corporate interest and income taxes (“EBIT”)						1,275		1,154						2,774		2,563
Corporate interest						122		103						376		315
Income taxes and noncontrolling interests						367		354						689		724
Net earnings attributable to Berkshire Hathaway shareholders					$	786	$	697						$1,709	$	1,524

PacifiCorp

PacifiCorp operates an electric utility in portions of several Western states, including Utah, Oregon and Wyoming. PacifiCorp’s revenues in the third quarter and first nine months of 2015 were $1.43 billion and $3.98 billion, respectively, representing 1% decreases from the third quarter and from the first nine months of 2014. In the first nine months of 2015, wholesale and other revenues declined $76 million, principally due to lower renewable energy credit revenue and lower rates and volumes, while retail revenues increased compared to 2014, reflecting higher average rates partially offset by lower volumes.

In 2015, PacifiCorp’s EBIT increased $14 million (4%) in the third quarter and decreased $33 million (4%) in the first nine months from the comparable 2014 periods. In 2015, PacifiCorp’s gross margins increased $19 million in the third quarter and $42 million in the first nine months compared to 2014, as energy and natural gas costs declined more than revenues. In the first nine months of 2015, the increases in gross margins were more than offset by increased depreciation and amortization expense ($29 million) due to increased plant-in-service, lower allowances for equity funds used during construction ($14 million) and the impact of the recognition in 2014 of expected insurance recoveries on fire losses.

33

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

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

MEC

MEC operates an electric and natural gas utility primarily in Iowa and Illinois. In 2015, MEC’s revenues increased $46 million (5%) in the third quarter of 2015 and declined $210 million (7%) for the first nine months from the comparable 2014 periods. In the first nine months of 2015, MEC’s regulated natural gas revenues declined $247 million, primarily due to lower average per-unit cost of gas sold in the first quarter of 2015, which was substantially offset by lower cost of sales. In 2015, regulated electric operating revenues increased $46 million in the third quarter and $57 million for the first nine months, reflecting higher retail rates in Iowa, increases in cost-based adjustment clause recoveries and higher retail customer loads, partially offset by lower average wholesale prices. The increases in Iowa regulated electric rates are attributable to higher retail rates and changes in rate structure approved in August 2014, which results in a greater differential between higher rates from June to September and lower rates in the remaining months.

MEC’s EBIT in the third quarter and first nine months of 2015 increased $35 million (27%) and $55 million (20%), respectively, as compared to 2014. The increases derived primarily from the regulated electric business, which benefitted from the aforementioned changes in Iowa rates and rate structure and lower fuel and purchased power costs, partially offset by increased depreciation and amortization expense from additional plant-in-service.

NV Energy

NV Energy operates electric and natural gas utilities in Nevada. NV Energy’s revenues and EBIT in the third quarter of 2015 were $1.13 billion and $340 million, respectively, and were essentially unchanged from the third quarter of 2014. In the first nine months of 2015, revenues and EBIT were $2.69 billion and $529 million, respectively, representing increases of $109 million (4%) and $28 million (6%), respectively, over the first nine months of 2014. The increase in year-to-date revenues was due primarily to higher regulated retail electric revenues reflecting increased customers and higher average regulated rates. The increase in year-to-date EBIT in 2015 was attributable to an increase in electric margins, partially offset by increased depreciation and amortization. NV Energy’s revenues and EBIT are normally higher in the second and third quarters due to higher electric consumption in certain of its service territories.

Northern Powergrid

Northern Powergrid’s revenues declined $43 million (14%) in the third quarter and $96 million (10%) in the first nine months of 2015 versus the corresponding 2014 periods. The declines reflected the adverse impact of the stronger U.S. Dollar of $22 million in the third quarter and $77 million in the first nine months. In addition, distribution revenues declined, reflecting the impact of the new price control period effective April 1, 2015. In 2015, Northern Powergrid’s EBIT declined $26 million (21%) in the third quarter and $54 million (13%) in the first nine months compared to 2014, due primarily to the impact of foreign currency translation, lower distribution revenues and higher distribution-related costs.

Natural Gas Pipelines

Natural gas pipeline revenues in the third quarter of 2015 increased $5 million (3%) from 2014 and in the first nine months of 2015 declined $68 million (8%) versus 2014. The year-to-date revenue decline was primarily due to lower gas sales related to system balancing activities during the first half of the year, partially offset by higher transportation revenues. In 2015, natural gas pipeline EBIT increased $8 million (18%) in the third quarter and $5 million (2%) in the first nine months as compared to 2014. EBIT increased in the first nine months primarily due to the increase in transportation revenues, partially offset by higher depreciation expense.

Other energy businesses

Revenues from other energy businesses in the third quarter and first nine months of 2015 included $162 million and $463 million, respectively, from AltaLink. EBIT of AltaLink in the third quarter and first nine months of 2015 were $43 million and $123 million, respectively. Revenues of other energy businesses, excluding AltaLink, increased $31 million (12%) in the third quarter and $179 million (39%) in the first nine months of 2015 as compared to 2014. EBIT of businesses other than AltaLink increased $25 million (21%) in the third quarter and $22 million (12%) in the first nine months of 2015 versus the same periods in 2014. The comparative increases in revenues were primarily attributable to increases in solar capacity placed in service. EBIT in 2015 from these other businesses increased over 2014, due primarily to the revenue increases, partially offset by higher depreciation and other operating costs.

34

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

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

Real estate brokerage

Real estate brokerage revenues in the third quarter and first nine months of 2015 increased 16% and 21%, respectively, compared to 2014, reflecting comparative increases in closed transactions and average home prices and the impact of business acquisitions. Real estate brokerage activities generated increased EBIT of $19 million in the third quarter and $65 million for the first nine months of 2015 compared to 2014, reflecting the increases in revenues.

Corporate interest and income taxes

Corporate interest includes interest on unsecured debt issued by BHE and borrowings from certain Berkshire insurance subsidiaries. In 2015, corporate interest expense increased due to borrowings in connection with the AltaLink acquisition. BHE’s effective income tax rate for the first nine months was 19.8% in 2015 and 23.6% in 2014. In each period, BHE’s utility subsidiaries recognized significant production tax credits from wind-powered electricity generation placed in service. In addition, earnings of Northern Powergrid and AltaLink are taxed at lower statutory rates in the U.K. and Canada, respectively, 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.

	Third Quarter								First Nine Months
	Revenues				Earnings				Revenues					Earnings
	2015		2014		2015		2014		2015		2014			2015		2014
McLane Company	$	12,264	$	12,151	$	106	$	120	$	36,200		$	34,327	$	384	$	361
Manufacturing		9,181		9,534		1,259		1,337		27,568			27,788		3,857		3,774
Service and retailing		6,151		3,493		378		355		16,966			10,456		1,260		1,095
	$	27,596	$	25,178					$	80,734		$	72,571
Pre-tax earnings						1,743		1,812							5,501		5,230
Income taxes and noncontrolling interests						566		588							1,892		1,809
					$	1,177	$	1,224						$	3,609	$	3,421

McLane Company

McLane operates 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 any of its significant customers could have a significant adverse impact on McLane’s periodic revenues and earnings.

Revenues for the third quarter and first nine months of 2015 were $12.3 billion and $36.2 billion, respectively, representing increases of $113 million (1%) and $1.87 billion (5%), respectively, over 2014. The year-to-date revenue increase was primarily in the foodservice and beverage operations. Pre-tax earnings in the third quarter were $106 million, a decrease of $14 million (12%) compared to 2014, while pre-tax earnings in the first nine months of 2015 increased $23 million (6%) to $384 million. In 2015, the ratio of pre-tax earnings to revenues in the third quarter was 0.86% and in the first nine months was 1.06%. Pre-tax earnings in 2015 included a gain of $19 million from the sale of a subsidiary in the second quarter. Otherwise, operating results in 2015 reflected increased earnings in the grocery and beverage divisions, partially offset by lower earnings in the foodservice operations.

35

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

Manufacturing, Service and Retailing (Continued)

Manufacturing

This group includes a variety of manufacturing businesses. The industrial and end-user products group includes: The Lubrizol Corporation (“Lubrizol”), a specialty chemical manufacturer; IMC International Metalworking Companies (“IMC”), an industry leader in the metal cutting tools business with operations worldwide; Forest River, a leading manufacturer of leisure vehicles; CTB, a manufacturer of equipment and systems for the livestock and agricultural industries; and the diversified manufacturing operations of Marmon. 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). A summary of revenues and earnings of our manufacturing operations follows (in millions).

	Third Quarter								First Nine Months
	Revenues				Earnings				Revenues				Earnings
	2015		2014		2015		2014		2015		2014		2015		2014
Industrial and end-user products	$	5,262	$	5,586	$	820	$	883	$	16,542	$	16,855	$	2,617	$	2,669
Building products		2,809		2,761		346		297		7,846		7,645		917		736
Apparel		1,110		1,187		93		157		3,180		3,288		323		369
	$	9,181	$	9,534	$	1,259	$	1,337	$	27,568	$	27,788	$	3,857	$	3,774

Aggregate revenues of our manufacturers were $9.2 billion and $27.6 billion in the third quarter and first nine months of 2015, respectively, which represented declines of $353 million (4%) from the third quarter and $220 million (1%) from the first nine months of 2014. Pre-tax earnings of these businesses were $1.26 billion in the third quarter of 2015, a decrease of $78 million (6%) compared to 2014, and $3.86 billion in the first nine months of 2015, an increase of $83 million (2%) versus the comparable 2014 period. Operating results in the first nine months 2015 of our industrial and end-user products businesses were mixed. Earnings of our building products businesses were generally higher, while earnings of our apparel businesses were generally lower than earnings in 2014.

Revenues in 2015 of our industrial and end-user products businesses declined $324 million (6%) in the third quarter and $313 million (2%) in the first nine months compared to the corresponding 2014 periods. The declines reflected the foreign currency translation impact of a stronger U.S. Dollar, which resulted in comparative revenue declines of approximately $210 million in the third quarter and $625 million in the first nine months. In addition, commodity cost deflation in petroleum and metals used in certain of our products resulted in lower average selling prices, in particular for Lubrizol, IMC and certain sectors within Marmon. As a result of the decline in oil prices and competitive pressures, we also experienced lower sales volumes to customers in or related to the oil and gas industry. The negative effect of foreign currency and lower selling prices in 2015 was partially offset by the impact of bolt-on acquisitions and underlying year-to-date volume increases in the commercial truck and trailer products and electrical wire and copper tubing businesses (Marmon), the agriculture and livestock equipment business (CTB) and recreational vehicles business (Forest River).

Pre-tax earnings in 2015 from our industrial and end-user products businesses declined $63 million (7%) in the third quarter and $52 million (2%) in the first nine months compared to the corresponding 2014 periods. The average pre-tax margin (pre-tax earnings to revenues) of these businesses was 15.6% in the third quarter of 2015 versus 15.8% in the third quarter of 2014. The average pre-tax margin in the first nine months of 2015 was 15.8%, which was essentially unchanged from 2014. The comparative declines in earnings in 2015 reflected the adverse impact of foreign currency translation as a result of the stronger U.S. Dollar, offset by lower average commodity costs and cost containment actions taken in response to the slowing sales volumes previously referenced.

36

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

Manufacturing, Service and Retailing (Continued)

Manufacturing (Continued)

Revenues in the third quarter and first nine months of 2015 from our building products businesses were approximately $2.8 billion and $7.8 billion, respectively, representing increases of 2% and 3%, respectively, over 2014. In 2015, the increases reflected sales volume increases in our flooring business (Shaw), insulation/roofing/engineered products businesses (Johns Manville), and certain other residential building products businesses (MiTek), as well as the impact of bolt-on business acquisitions. These revenue increases were partially offset by the adverse impact of foreign currency translation from a stronger U.S. Dollar ($47 million in the third quarter and $131 million in the first nine months). Pre-tax earnings of the building products businesses in 2015 increased 16% in the third quarter and 25% in the first nine months compared to 2014. In 2015, the overall increase in earnings was primarily attributable to the increases in revenues and lower average raw material and energy costs, partially offset by the negative impact of foreign currency translation and increased restructuring charges. Most of the comparative increases in earnings were generated by our flooring business (Shaw) and by our insulation and roofing businesses (Johns Manville).

Apparel revenues in the third quarter and first nine months of 2015 were $1.1 billion and $3.2 billion, respectively, representing decreases of $77 million (6%) and $108 million (3%) compared to the same periods in 2014. In the third quarter of 2015, our apparel operations generally experienced lower sales volume compared to 2014. In addition, revenues of these businesses in 2015 were negatively impacted by foreign currency translation in the third quarter ($30 million) and first nine months ($91 million). Pre-tax earnings of these businesses in 2015 decreased $64 million (41%) in the third quarter and $46 million (12%) in the first nine months as compared to 2014. The decline in earnings was primarily due to a pre-tax loss in the third quarter of 2015 from the disposition of a historically unprofitable operation within Fruit of the Loom and lower earnings from our footwear businesses.

Service and retailing

Our service and retailing businesses are engaged in various service-related activities, and sell various products through wholesale distribution or retail channels. These businesses include NetJets, a leading provider of fractional ownership programs for general aviation aircraft; FlightSafety, a provider of high technology training to operators of aircraft; TTI, an 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 6,500 stores that offer prepared dairy treats and food; Buffalo News and the BH Media Group (“BH Media”), which includes the Omaha World-Herald, as well as numerous other daily newspapers and other publications; WPLG (acquired June 30, 2014), which operates a television station in Miami, Florida; and Charter Brokerage, a leading third party logistics provider to the petroleum and chemical industries (acquired December 12, 2014).

Our service and retailing businesses also include: four home furnishings retailing businesses (Nebraska Furniture Mart, R.C. Willey, Star Furniture and Jordan’s), three jewelry retailing businesses (Borsheims, Helzberg and Ben Bridge), See’s Candies, which makes and sells confectionary products through its retail stores and quantity order centers; 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. In the first quarter of 2015, we acquired The Van Tuyl Group (now named Berkshire Hathaway Automotive or “BHA”) which included 81 auto dealerships located in 10 states. BHA sells new and pre-owned automobiles and offers repair and other related services and products, and includes two related insurance businesses, two auto auctions and a manufacturer of automotive fluid maintenance products. On April 30, 2015, we acquired Detlev Louis Motorad (“DLM”), a retailer of motorcycle accessories based in Germany.

Service and retailing revenues in the third quarter and first nine months of 2015 were approximately $6.2 billion and $17.0 billion, respectively, representing increases of approximately $2.7 billion (76%) and $6.5 billion (62%), respectively, as compared to 2014. In 2015, the revenue increases reflected the impact of the BHA and DLM acquisitions, which contributed revenues of approximately $2.5 billion in the third quarter and $6.0 billion in the first nine months. In third quarter and first nine months of 2015, revenues of our home furnishings retailers increased $193 million (33%) and $411 million (24%), respectively. The increases in revenues from home furnishings retailers were driven by Nebraska Furniture Mart, which opened a new store in a suburb of Dallas, Texas in March of 2015, and from revenue increases at R.C. Willey and Jordan’s. In the first nine months of 2015, TTI generated revenue increases of 5% compared to 2014, reflecting the impact of increased sales and bolt-on acquisitions, partially offset by foreign currency translation effects of a stronger U.S. Dollar. In the first nine months of 2015, NetJets produced a revenue increase of 5%, primarily attributable to increased aircraft sales, partially offset by lower flight operations revenues, which were primarily due to lower fuel cost recoveries.

37

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

Manufacturing, Service and Retailing (Continued)

Service and retailing (Continued)

Service and retailing pre-tax earnings in the third quarter and first nine months of 2015 were $378 million and $1,260 million, respectively, representing increases of $23 million (6%) and $165 million (15%), respectively, compared to 2014. The increases reflected the impact of the BHA and DLM acquisitions, which contributed pre-tax earnings of $30 million in the third quarter and $129 million for the first nine months of 2015. Our home furnishings retailers generated increases in pre-tax earnings of 27% in the third quarter and 16% for the first nine months of 2015, primarily due to the impact of the new Nebraska Furniture Mart store and increased earnings from R.C. Willey and Jordan’s. TTI’s earnings in 2015 were relatively unchanged from 2014. NetJets’ earnings in 2015 declined 37% in the third quarter and 7% for the first nine months compared to 2014. In 2015, NetJets incurred increased non-fuel flight operation costs and increased general and administrative expenses, including fees to cancel certain aircraft purchases.

Finance and Financial Products

Our finance and financial products businesses include manufactured housing and finance (Clayton Homes), transportation equipment manufacturing and leasing businesses (UTLX and XTRA, and together, “transportation equipment leasing”), as well as other leasing and financing activities. UTLX 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 our finance and financial products businesses follows. Amounts are in millions.

	Third Quarter				First Nine Months
	2015		2014		2015		2014
Manufactured housing and finance	$	189	$	144	$	515	$	403
Transportation equipment leasing		235		225		655		605
Other		62		84		310		239
Pre-tax earnings		486		453		1,480		1,247
Income taxes and noncontrolling interests		183		156		518		432
	$	303	$	297	$	962	$	815

Clayton Homes’ pre-tax earnings in the third quarter and first nine months of 2015 increased $45 million (31%) and $112 million (28%), respectively, compared to 2014. Revenues in the third quarter and first nine months of 2015 increased 8% and 7%, respectively, over the comparable 2014 periods, primarily due to an 8% increase in year-to-date home unit sales. Earnings in 2015 benefited from lower interest expense on borrowings, improved manufacturing results and relatively low delinquency rates and lower loss rates on foreclosures. The decline in interest expense was primarily due to lower rates and to a lesser extent lower average balances. As of September 30, 2015, approximately 95% of the aggregate installment loans were current in terms of payment status. Traditional single family housing markets 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. Despite this competitive disadvantage, Clayton Homes remains the largest manufactured housing business in the United States and we believe that it will continue to operate profitably.

Transportation equipment leasing revenues in the third quarter of 2015 were relatively unchanged from the corresponding 2014 period, while in the first nine months of 2015, revenues increased 4% compared to 2014. The year-to-date revenues increase reflected increased rail car lease rates, a larger fleet of North American tank cars, higher volumes in our Australian crane business attributable to the ramp up of additional long-term maintenance and logistics contract work, and increased gains on sales of trailers. These increases were partially offset by unfavorable foreign currency exchange effects attributable to a stronger U.S. Dollar and lower volumes in our North American crane services business due to declines in oil drilling activity.

Pre-tax earnings in the third quarter and first nine months of 2015 from our transportation equipment leasing businesses were $235 million and $655 million, respectively, representing increases of $10 million (4%) and $50 million (8%), respectively, over 2014. In 2015, pre-tax earnings as a percentage of revenues, increased to 37% from 36% in the third quarter and to 35% from 34% in the first nine months versus the comparable 2014 periods. In the first nine months of 2015, the increase in earnings was primarily attributable to the positive impact of the revenue growth discussed above, which more than offset the unfavorable foreign currency impact and higher railcar repair costs and warranty costs. A significant portion of the costs of these businesses, such as depreciation, do not vary proportionately to revenue changes and therefore changes in revenues can disproportionately impact earnings. On September 30, 2015, UTLX acquired approximately 25,000 tank cars from General Electric Company’s leasing unit for a total purchase price of approximately $1.0 billion. This transaction and related transactions to be completed in the fourth quarter of 2015 are expected to further enhance the full-service capabilities of UTLX’s repair, maintenance and inspection network and contribute to future revenue and earnings growth.

38

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

Finance and Financial Products (Continued)

Other earnings from finance activities include CORT furniture leasing, our share of the earnings of a commercial mortgage servicing business (“Berkadia”) in which we own a 50% joint venture interest, and interest and dividends from a portfolio of investments. The decline in other earnings in the third quarter was primarily attributable to lower income from investment securities, partially offset by an increase in earnings of CORT. The increase in other earnings for the first nine months reflected increased earnings from investment securities, Berkadia and CORT. 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 installment loans made by Clayton Homes and debt guarantee fees charged to NetJets. Corresponding expenses are included in Clayton Homes’ and NetJets’ results. Guarantee fees and interest rate spreads charged to Clayton Homes and NetJets for the first nine months of 2015 and 2014 aggregated $48 million and $53 million, respectively.

Investment and Derivative Gains/Losses

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

	Third Quarter					First Nine Months
	2015		2014			2015		2014
Investment gains/losses	$	8,292	$	302		$	8,751	$	3,818
Other-than-temporary impairments		(26)		(678	)		(26)		(697)
Derivative gains/losses		(764)		258			380		649
Gains/losses before income taxes and noncontrolling interests		7,502		(118	)		9,105		3,770
Income taxes and noncontrolling interests		2,625		(11	)		3,185		641
Net gains/losses	$	4,877	$	(107	)	$	5,920	$	3,129

Investment gains/losses arise primarily from the sale, redemption, or exchange of investments or when investments are carried at fair value with the periodic changes in fair values recorded in earnings. The timing of gains or losses can have a material effect on periodic earnings. Investment gains and losses included in earnings usually have minimal impact on the periodic changes in our consolidated shareholders’ equity since most of our investments are 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 reflected in earnings.

Pre-tax investment gains in the third quarter and first nine months of 2015 included non-cash holding gains related to our investment in Kraft Heinz of $6.8 billion, as well as net gains from dispositions of equity and fixed maturity securities of approximately $1.5 billion in the third quarter and $1.9 billion in the first nine months. In connection with its acquisition of Kraft Foods, Kraft Heinz issued new shares of its common stock in exchange for the outstanding shares of Kraft Foods common stock, thus reducing Berkshire’s ownership interest in Kraft Heinz by approximately 50%. Under the equity method of accounting, such transactions are treated by the investor as if it sold a portion of its interests. For additional information see Note 7 to our Consolidated Financial Statements.

Pre-tax investment gains in the first nine months of 2014 included $2.1 billion in non-cash gains realized in connection with the exchanges of shares of Phillips 66 and Graham Holdings Company common stock for 100% of the common stock of a specified subsidiary of each of those companies. The exchange transactions were structured as tax-free reorganizations under the Internal Revenue Code. As a result, no income taxes are payable on the excess of the fair value of the Phillips 66 and Graham Holdings Company shares exchanged and the tax-basis cost of those shares. In addition, investment gains in 2014 included net gains from dispositions of equity and fixed maturity securities of $295 million in the third quarter and approximately $1.8 billion in the first nine months.

39

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

Investment and Derivative Gains/Losses (Continued)

Other-than-temporary impairment (“OTTI”) charges in the first nine months of 2015 were not significant. OTTI charges in the third quarter of 2014 were $678 million and related to our investments in equity securities of Tesco PLC. Although we have periodically recorded OTTI charges in earnings in past years, we continue to hold some of those securities. If the market values of those investments increase following the date OTTI charges are recorded in earnings, the increases 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. In addition, the recognition of such losses in earnings, rather than in accumulated other comprehensive income, does not necessarily indicate that sales are planned and sales may not occur for a number of years. Furthermore, the recognition of an OTTI charge 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 September 30, 2015, consolidated gross unrealized losses on our investments in equity and fixed maturity securities determined on an individual purchase lot basis were approximately $3.1 billion. We concluded that as of that date, such losses were 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 represent the changes in fair value of our remaining credit default contract and our 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. In 2015, derivative contracts produced pre-tax losses of $764 million in the third quarter and pre-tax gains of $380 million in the first nine months compared to pre-tax gains in 2014 of $258 million in the third quarter and $649 million in the first nine months. In the first nine months of 2015, the gains and losses were primarily related to our equity index put option contracts, while in 2014 the gains related to our credit default contract as well as our equity index put option contracts.

In 2015, equity index put option contracts produced pre-tax losses of $802 million in the third quarter and pre-tax gains of $371 million in the first nine months. In the third quarter of 2015, the losses were driven by lower index prices and increased expected volatility assumptions, which produced an increase in the fair value of our liabilities. The third quarter losses offset much of the gains realized in the first six months of 2015, which resulted from higher index prices, a stronger U.S. Dollar and increased interest rates. In 2014, equity index put option contracts produced pre-tax gains of $223 million in the third quarter and $156 million in the first nine months. As of September 30, 2015, the intrinsic value of these contracts was approximately $1.4 billion and the fair value of our recorded liabilities was approximately $4.2 billion. Our ultimate payment obligations, if any, under our equity index put option contracts will be determined as of the contract expiration dates, which begin in 2018, and will be based on the intrinsic value, as defined under the contracts.

Our remaining credit default contract produced pre-tax gains in the third quarter and first nine months of 2015 of $38 million and $9 million, respectively. In the third quarter and first nine months of 2014, this contract generated pre-tax gains of $35 million and $492 million, respectively. These gains represent reductions in the estimated fair value of our recorded liabilities during the period, reflecting changes in credit spreads, interest rates and remaining durations of the underlying exposures.

Other

Corporate income and expenses not allocated to operating businesses includes our investments in Kraft Heinz which generated after-tax earnings of $115 million and $315 million in the third quarter and first nine months of 2015, respectively, compared to $198 million and $491 million, respectively, in the corresponding periods of 2014. Also included in other earnings are amortization of fair value adjustments made in connection with several prior business acquisitions (primarily related to the amortization of identifiable intangible assets) and corporate interest expense.

Financial Condition

Our balance sheet continues to reflect significant liquidity and a strong capital base. Our consolidated shareholders’ equity at September 30, 2015 was $248.3 billion, an increase of $8.1 billion since December 31, 2014. Net earnings attributable to Berkshire shareholders in the first nine months of 2015 were $18.6 billion, which was partially offset by approximately $10.5 billion of losses in other comprehensive income primarily related to changes in unrealized investment appreciation and the impact of foreign currency translation.

40

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

Financial Condition (Continued)

At September 30, 2015, insurance and other businesses held cash and cash equivalents of $56.2 billion, and investments (excluding our investments in Kraft Heinz) of $148.2 billion. We used approximately $4.8 billion in cash in the first nine months of 2015 to fund business acquisitions. On July 1, 2015, Berkshire used cash of approximately $5.3 billion to acquire additional shares of Kraft Heinz common stock. Our various insurance and non-insurance businesses continued to generate significant cash flows from operations. In 2015, Berkshire Hathaway parent company issued €3.0 billion in senior unsecured notes consisting of €750 million of 0.75% senior notes due in 2023, €1.25 billion of 1.125% senior notes due in 2027 and €1.0 billion of 1.625% senior notes due in 2035. During 2015, parent company senior notes of $1.7 billion matured and were repaid. Over the next twelve months, $1.05 billion of parent company senior notes will mature, including $300 million in February 2016.

On August 8, 2015, Berkshire entered into a definitive agreement with Precision Castparts Corp. (“PCC”) to acquire for $235 per share of common stock in cash, all outstanding PCC shares of common stock, other than the shares already owned (about 2.7 million shares or 1.96%), for aggregate consideration of approximately $31.7 billion. Berkshire currently expects to fund the acquisition with a combination of cash on hand and newly issued debt.

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 under the program in the first nine months of 2015.

Our railroad, utilities and energy businesses (conducted by BNSF and BHE) maintain very large investments in capital assets (property, plant and equipment) and will regularly make significant capital expenditures in the normal course of business. In the first nine months of 2015, aggregate capital expenditures of these businesses were approximately $8.3 billion, including $4.2 billion by BHE and $4.1 billion by BNSF. BNSF and BHE forecast additional aggregate capital expenditures of approximately $3.3 billion for the remainder of 2015. Future capital expenditures are expected to be funded from cash flows from operations and debt issuances.

In the first nine months of 2015, BNSF issued $2.5 billion of senior unsecured debentures, consisting of $850 million of debentures due in 2025 and $1.65 billion of debentures due in 2045. In 2015, BNSF also issued $500 million of amortizing debt with a final maturity date of 2028, which is secured with locomotives. BNSF’s outstanding debt was approximately $21.9 billion as of September 30, 2015. Outstanding borrowings of BHE and its subsidiaries, excluding borrowings from Berkshire insurance subsidiaries, were approximately $36.0 billion as of September 30, 2015 and were relatively unchanged from December 31, 2014. BNSF and BHE aggregate term debt and capital lease obligations maturing within the next twelve months are not significant. Berkshire does not guarantee the repayment of debt issued by BNSF, BHE or any of their subsidiaries and is not committed to provide capital to support BHE or BNSF or any of their subsidiaries.

Finance and financial products assets were approximately $39.6 billion as of September 30, 2015, an increase of approximately $6.1 billion since December 31, 2014, reflecting increases in cash and cash equivalents and equity securities. Assets of these businesses consisted primarily of loans and finance receivables, cash and cash equivalents, and sizable portfolios of fixed maturity and equity securities. Assets also consisted of various types of equipment and furniture held for lease, which included tank cars acquired from General Electric Company’s leasing unit on September 30, 2015 for approximately $1.0 billion.

Finance and financial products liabilities were approximately $18.9 billion as of September 30, 2015, an increase of approximately $1.0 billion during the third quarter but essentially unchanged compared to December 31, 2014. The changes in liabilities during 2015 were primarily attributable to the change in the fair values of derivative contracts. Notes payable and other borrowings were approximately $12.5 billion as of September 30, 2015, a decline of $253 million compared to year-end 2014. As of September 30, 2015, notes payable included $11.2 billion of senior notes issued by Berkshire Hathaway Finance Corporation (“BHFC”). In January 2015, $1.0 billion of BHFC debt matured and at that time BHFC issued $1.0 billion of new floating rate senior notes of which $400 million matures in 2017 and $600 million matures in 2018. The proceeds from the BHFC senior notes are used to fund loans originated and acquired by Clayton Homes. An additional $1.5 billion of BHFC senior notes mature within the next twelve months including $500 million that mature in December 2015.

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 are reflected in our Consolidated Balance Sheets, such as notes payable, which require future payments on contractually specified dates and in fixed and determinable amounts. Other obligations pertain to the acquisition of goods or services in the future, such as minimum rentals under operating leases and certain purchase obligations, 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.

41

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

Contractual Obligations (Continued)

In the first nine months of 2015, we issued new term debt through the Berkshire parent company and various subsidiaries. Future payments of principal and interest related to such borrowings are summarized as follows (in millions): 2015-$30; 2016 and 2017-$857; 2018 and 2019-$1,041; and after 2019-$11,245. As indicated in Note 19 to the accompanying Consolidated Financial Statements and Management’s Discussion and Analysis of Financial Condition, Berkshire has agreed to acquire all of the outstanding shares of PCC that it does not already own for aggregate cash consideration of approximately $31.7 billion, subject to PCC shareholder and various regulatory approvals. Except as otherwise noted herein, our contractual obligations as of September 30, 2015 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, 2014.

Critical Accounting Policies

Certain accounting policies require us to make estimates and judgments that affect the amounts reflected in the Consolidated Financial Statements. Such estimates and judgments necessarily involve varying, and possibly significant, degrees of uncertainty. Accordingly, certain amounts currently recorded in the financial statements will likely be adjusted in the future based on new available information and changes in other facts and circumstances. 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, 2014.

Our Consolidated Balance Sheet as of September 30, 2015 includes estimated liabilities for unpaid losses from property and casualty insurance and reinsurance contracts of $72.3 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 periodic earnings. The effects from changes in these estimates are recorded as a component of insurance losses and loss adjustment expenses in the period of the change.

Our Consolidated Balance Sheet includes goodwill of acquired businesses of $62.7 billion. We evaluate goodwill for impairment at least annually and we conducted our most recent annual review during the fourth quarter of 2014. Although we believe that the goodwill reflected in the Consolidated Balance Sheet as of September 30, 2015 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 earnings.

Our Consolidated Balance Sheets include significant derivative contract liabilities with respect to our long-duration equity index put option contracts. The fair values recorded for these liabilities are based on valuation models that utilize various inputs and assumptions that we believe are used by market participants. We further believe that fair values based on such models are inherently subjective and the values in an actual transaction may differ significantly from the model values. Changes in the assumptions utilized within the valuation models may have a significant effect on recorded fair values and periodic earnings.

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 guarantees 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 and 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.

42

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 September 30, 2015, 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, 2014.

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.

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, 2014 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 under the program in the first nine months of 2015.

Item 3. Defaults Upon Senior Securities

None

43

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.

On November 4, 2015, Bridger Coal Company, a coal mining joint venture that is two-thirds owned and operated by a subsidiary of PacifiCorp, received an imminent danger order under section 107(a) of the Federal Mine Safety and Health Act of 1977 at its underground mine located near Rock Springs, Wyoming. On that same date, Bridger Coal Company completed actions to abate the concerns, and the Federal Mine Safety and Health Administration terminated the section 107(a) order.

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 September 30, 2015, formatted in XBRL (Extensible Business Reporting Language) includes: (i) the Consolidated Balance Sheets as of September 30, 2015 and December 31, 2014, (ii) the Consolidated Statements of Earnings for each of the three-month and nine-month periods ended September 30, 2015 and 2014, (iii) the Consolidated Statements of Comprehensive Income for each of the three-month and nine-month periods ended September 30, 2015 and 2014, (iv) the Consolidated Statements of Changes in Shareholders’ Equity for each of the nine-month periods ended September 30, 2015 and 2014, (v) the Consolidated Statements of Cash Flows for each of the nine-month periods ended September 30, 2015 and 2014, and (vi) the Notes to Consolidated Financial Statements, tagged in summary and detail.

44

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: November 6, 2015	/S/ MARC D. HAMBURG
	(Signature)
	Marc D. Hamburg,
	Senior Vice President and Principal Financial Officer

45

EX-12

Exhibit 12

BERKSHIRE HATHAWAY INC.

Calculation of Ratio of Consolidated Earnings to Consolidated Fixed Charges

(Dollars in millions)

	Nine Months Ended September 30, 2015			Year Ended December 31,
				2014		2013		2012		2011		2010
Net earnings attributable to Berkshire Hathaway shareholders		$	18,605	$	19,872	$	19,476	$	14,824	$	10,254	$	12,967
Income tax expense			8,698		7,935		8,951		6,924		4,568		5,607
Earnings attributable to noncontrolling interests			262		298		369		488		492		527
(Earnings) loss from equity method investments			211		33		255		—		—		(50)
Dividends from equity method investments			179		—		—		—		—		20
Fixed charges			3,179		3,882		3,386		3,304		3,219		3,084
Earnings available for fixed charges		$	31,134	$	32,020	$	32,437	$	25,540	$	18,533	$	22,155
Fixed charges:
Interest expense, including amortization		$	2,707	$	3,253	$	2,801	$	2,744	$	2,664	$	2,558
Rentals representing interest and capitalized interest			472		629		585		560		555		526
		$	3,179	$	3,882	$	3,386	$	3,304	$	3,219	$	3,084
Ratio of earnings to fixed charges			9.79x		8.25x		9.58x		7.73x		5.76x		7.18x

EX-31.1

EXHIBIT 31.1

Quarter ended September 30, 2015

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: November 6, 2015

/S/ WARREN E. BUFFETT

Chairman—Principal Executive Officer

EX-31.2

EXHIBIT 31.2

Quarter ended September 30, 2015

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: November 6, 2015

/S/ MARC D. HAMBURG

Senior Vice President—Principal Financial Officer

EX-32.1

EXHIBIT 32.1

Section 1350 Certifications

Quarter ended September 30, 2015

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 September 30, 2015 (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: November 6, 2015

/S/ WARREN E. BUFFETT

Warren E. Buffett

Chairman and Chief Executive Officer

EX-32.2

EXHIBIT 32.2

Section 1350 Certifications

Quarter ended September 30, 2015

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 September 30, 2015 (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: November 6, 2015

/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 September 30, 2015 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. Clay and other reserves that are not yet mined and mines that are closed or idled are not included in the information below if no reportable events occurred at those locations during the three-month period ended September 30, 2015. 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 September 30, 2015.

	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(7)	—	—	—	—	—	$—	—	—	—	1
Bridger (surface)	3	—	—	—	—	213	—	6	3	—
Bridger (underground)	9	—	—	—	—	40	—	2	2	5
Wyodak Coal Crushing Facility	—	—	—	—	—	—	—	—	—	—
Clay, shale and limestone:
Malvern	—	—	—	—	—	—	—	—	—	—
Wheeler	—	—	—	—	—	—	—	—	—	—
Fort Smith	—	—	—	—	—	—	—	—	—	—
Oklahoma City	—	—	—	—	—	—	—	—	—	—
Tulsa	—	—	—	—	—	—	—	—	—	—
Denver	—	—	—	—	—	—	—	—	—	—
Bennett	—	—	—	—	—	—	—	—	—	—
Denton	1	—	—	—	—	—	—	—	—	—
Elgin	—	—	—	—	—	—	—	—	—	—
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 six contests of proposed penalties under Subpart C and two contests of citations or orders under Subpart B 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.

(7) The Deer Creek mine is currently idled and closure activities have begun.

XML

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

9 Months Ended

Sep. 30, 2015

Derivative contracts outstanding

A summary of those liabilities and related notional values follows (in millions).

	September 30, 2015							December 31, 2014
	Liabilities			Notional Value				Liabilities			Notional Value
Equity index put options		$	4,188		$	28,239	(1)		$	4,560		$	29,469	(1)
Credit default			242			7,792	(2)			250			7,792	(2)
		$	4,430						$	4,810

⁽¹⁾  Represents the aggregate undiscounted amounts payable assuming that the value of each index is zero at each contract’s expiration date. Certain of these contracts are denominated in foreign currencies. Notional amounts are based on the foreign currency exchange rates as of each balance sheet date.

⁽²⁾  Represents the aggregate undiscounted amounts payable under the contracts assuming all underlying issuers default and the residual value of the specified obligations is zero.

Derivative gains/losses included in the Consolidated Statements of Earnings

A summary of the derivative gains/losses included in our Consolidated Statements of Earnings for the third quarter and first nine months of 2015 and 2014 follows (in millions).

	Third Quarter					First Nine Months
	2015			2014		2015		2014
Equity index put options	$	(802	)	$	223	$	371	$	156
Credit default		38			35		9		492
Other, principally interest rate and foreign currency		—			—		—		1
	$	(764	)	$	258	$	380	$	649

XML

Investments in equity securities (Parenthetical) (Detail) $ in Millions	Sep. 30, 2015 USD ($) Company		Dec. 31, 2014 USD ($) Company
Summary of Investment Holdings [Line Items]
Fair value of investments	$ 110,288	[1]	$ 117,470	[2]
American Express Company [Member]
Summary of Investment Holdings [Line Items]
Fair value of investments	11,200		14,100
Wells Fargo & Company [Member]
Summary of Investment Holdings [Line Items]
Fair value of investments	25,200		26,500
International Business Machines Corporation [Member]
Summary of Investment Holdings [Line Items]
Fair value of investments	11,700		12,300
The Coca-Cola Company [Member]
Summary of Investment Holdings [Line Items]
Fair value of investments	$ 16,000		$ 16,900
Equity Securities [Member] | Investment Concentration [Member]
Summary of Investment Holdings [Line Items]
Concentration percentage	58.00%		59.00%
Number of companies in concentration percentage | Company	4		4

[1] Approximately 58% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company - $11.2 billion; Wells Fargo & Company - $25.2 billion; International Business Machines Corporation ("IBM") - $11.7 billion; and The Coca-Cola Company - $16.0 billion).

[2] Approximately 59% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company - $14.1 billion; Wells Fargo & Company - $26.5 billion; International Business Machines Corporation ("IBM") - $12.3 billion; and The Coca-Cola Company - $16.9 billion).

XML

Significant business acquisitions - Pro forma consolidated earnings data (Detail) - AltaLink and Berkshire Hathaway Automotive [Member] $ / shares in Units, $ in Millions	9 Months Ended
	Sep. 30, 2014 USD ($) $ / shares
Business Acquisition [Line Items]
Revenues	$ 153,079
Net earnings attributable to Berkshire Hathaway shareholders	$ 15,838
Net earnings per equivalent Class A common share attributable to Berkshire Hathaway shareholders | $ / shares	$ 9,636

XML

Goodwill and other intangible assets - Intangible assets (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 15,668	$ 15,968
Accumulated amortization	5,468	6,027
Trademarks and trade names [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross carrying amount	3,054	3,117
Accumulated amortization	742	599
Patents and technology [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross carrying amount	4,225	5,425
Accumulated amortization	1,992	3,133
Customer relationships [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross carrying amount	5,510	5,603
Accumulated amortization	2,041	1,768
Other intangible assets [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross carrying amount	2,879	1,823
Accumulated amortization	693	527
Insurance and Other [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross carrying amount	14,783	13,714
Accumulated amortization	5,243	4,476
Railroad, Utilities and Energy [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross carrying amount	885	2,254
Accumulated amortization	$ 225	$ 1,551

XML

Investments in equity securities - Narrative (Detail) - USD ($)	Sep. 30, 2015	Dec. 31, 2014
Summary of Investment Holdings [Line Items]
Unrealized losses on investments	$ 2,980,000,000	$ 1,037,000,000
Equity Securities [Member]
Summary of Investment Holdings [Line Items]
Other than temporary unrealized losses	0	0
Unrealized losses related to securities that have been in an unrealized loss position for more than 12 months	204,000,000	$ 65,000,000
International Business Machines Corporation [Member] | Common Stock [Member]
Summary of Investment Holdings [Line Items]
Unrealized losses on investments	$ 2,000,000,000
Unrealized losses on investments, percentage of cost	15.00%

XML

Fair value measurements - Financial assets and liabilities (Detail) - USD ($) $ in Millions		Sep. 30, 2015		Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		$ 27,160		$ 27,636
Investments in equity securities		110,288	[1]	117,470	[2]
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		57,872		55,579
Finance and Financial Products [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		41		239
Investments in equity securities		2,999		1,060
Other investments		5,565		5,978
Loans and finance receivables - carrying value		12,686		12,566
Derivative contract liabilities		4,430		4,810
Notes payable and other borrowings - carrying value		12,483		12,736
Insurance and Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		27,119		27,397
Investments in equity securities		106,104		115,529
Other investments		15,011		16,346
Notes payable and other borrowings - carrying value		14,556		11,894
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	[3]	1,185		881
Kraft Heinz (previously Heinz Holding) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment in Kraft Heinz common stock - carrying value		15,816		3,950
Investment in Kraft Heinz Preferred Stock - carrying value		7,710		7,710
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		3,819		2,930
States, municipalities and political subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		1,868		1,912
Foreign governments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		11,644		12,270
Corporate bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		8,116		8,771
Mortgage-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		1,713		1,753
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		110,250		117,424
Other investments		303		329
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]			1
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	[4]	12		18
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		37		45
Loans and finance receivables - fair value		16		33
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		63,044		62,802
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		12,433		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		14,716		12,484
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	[4]	10		13
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	[4]	196		169
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		1		1
Other investments		20,273		21,995
Loans and finance receivables - fair value		13,051		12,858
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		485		571
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		4,188		4,560
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Finance and Financial Products [Member] | Credit Default [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative contract liabilities		242		250
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	[4]	99		94
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	[4]	49		43
Fair Value, Measurements, Recurring [Member] | Kraft Heinz (previously Heinz Holding) [Member] | Quoted Prices (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment in Kraft Heinz common stock - fair value		22,970
Fair Value, Measurements, Recurring [Member] | Kraft Heinz (previously Heinz Holding) [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment in Kraft Heinz Preferred Stock - fair value		8,568		8,416
Fair Value, Measurements, Recurring [Member] | U.S. Treasury, U.S. government corporations and agencies [Member] | Quoted Prices (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		2,542		2,264
Fair Value, Measurements, Recurring [Member] | U.S. Treasury, U.S. government corporations and agencies [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		1,277		666
Fair Value, Measurements, Recurring [Member] | States, municipalities and political subdivisions [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		1,868		1,912
Fair Value, Measurements, Recurring [Member] | Foreign governments [Member] | Quoted Prices (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		6,982		7,981
Fair Value, Measurements, Recurring [Member] | Foreign governments [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		4,662		4,289
Fair Value, Measurements, Recurring [Member] | Corporate bonds [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		8,005		8,763
Fair Value, Measurements, Recurring [Member] | Corporate bonds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		111		8
Fair Value, Measurements, Recurring [Member] | Mortgage-backed securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		1,713		1,753
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		110,288		117,470
Other investments		20,576		22,324
Loans and finance receivables - carrying value		12,686		12,566
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		57,872		55,579
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		12,483		12,736
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		4,188		4,560
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member] | Finance and Financial Products [Member] | Credit Default [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative contract liabilities		242		250
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		14,556		11,894
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	[4]	109		108
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	[4]	257		230
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member] | Kraft Heinz (previously Heinz Holding) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment in Kraft Heinz common stock - carrying value		15,816
Investment in Kraft Heinz Preferred Stock - carrying value		7,710		7,710
Fair Value, Measurements, Recurring [Member] | Carrying Value [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		3,819		2,930
Fair Value, Measurements, Recurring [Member] | Carrying Value [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		1,868		1,912
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member] | Foreign governments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		11,644		12,270
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member] | Corporate bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		8,116		8,771
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member] | Mortgage-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		1,713		1,753
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		110,288		117,470
Other investments		20,576		22,324
Loans and finance receivables - fair value		13,067		12,891
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		63,044		62,802
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		12,918		13,417
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		4,188		4,560
Fair Value, Measurements, Recurring [Member] | Fair Value [Member] | Finance and Financial Products [Member] | Credit Default [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative contract liabilities		242		250
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		14,716		12,484
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	[4]	109		108
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	[4]	257		230
Fair Value, Measurements, Recurring [Member] | Fair Value [Member] | Kraft Heinz (previously Heinz Holding) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment in Kraft Heinz common stock - fair value		22,970
Investment in Kraft Heinz Preferred Stock - fair value		8,568		8,416
Fair Value, Measurements, Recurring [Member] | Fair Value [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		3,819		2,930
Fair Value, Measurements, Recurring [Member] | Fair Value [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		1,868		1,912
Fair Value, Measurements, Recurring [Member] | Fair Value [Member] | Foreign governments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		11,644		12,270
Fair Value, Measurements, Recurring [Member] | Fair Value [Member] | Corporate bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		8,116		8,771
Fair Value, Measurements, Recurring [Member] | Fair Value [Member] | Mortgage-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in fixed maturity securities		$ 1,713		$ 1,753

[1] Approximately 58% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company - $11.2 billion; Wells Fargo & Company - $25.2 billion; International Business Machines Corporation ("IBM") - $11.7 billion; and The Coca-Cola Company - $16.0 billion).

[2] Approximately 59% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company - $14.1 billion; Wells Fargo & Company - $26.5 billion; International Business Machines Corporation ("IBM") - $12.3 billion; and The Coca-Cola Company - $16.9 billion).

[3] Included in other assets.

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

XML

Significant business acquisitions - Narrative (Detail) CAD in Billions, $ in Billions			3 Months Ended
	Dec. 01, 2014 USD ($)	Dec. 01, 2014 CAD	Mar. 31, 2015 USD ($) State Business
Berkshire Hathaway Automotive (formerly Van Tuyl Group) [Member]
Business Acquisition [Line Items]
Aggregate consideration paid for acquisitions | $			$ 4.1
Berkshire Hathaway Automotive (formerly Van Tuyl Group) [Member] | Auto Dealerships [Member]
Business Acquisition [Line Items]
Number of businesses			81
Number of states with auto dealerships | State			10
Berkshire Hathaway Automotive (formerly Van Tuyl Group) [Member] | Insurance [Member]
Business Acquisition [Line Items]
Number of businesses			2
Berkshire Hathaway Automotive (formerly Van Tuyl Group) [Member] | Auto Auctions [Member]
Business Acquisition [Line Items]
Number of businesses			2
Berkshire Hathaway Automotive (formerly Van Tuyl Group) [Member] | Manufacturer of Automotive Fluid Maintenance Products [Member]
Business Acquisition [Line Items]
Number of businesses			1
AltaLink [Member] | Berkshire Hathaway Energy [Member]
Business Acquisition [Line Items]
Aggregate consideration paid for acquisitions	$ 2.7	CAD 3.1

XML

Investments in The Kraft Heinz Company (formerly H.J. Heinz Holding Corporation) (Tables)

9 Months Ended

Sep. 30, 2015

Summarized consolidated financial information of Kraft Heinz

Summarized consolidated financial information of Kraft Heinz follows (in millions).

	September 27, 2015			December 28, 2014
Assets		$	121,792		$	36,535
Liabilities			54,433			20,850

	Third quarter							First nine months
	2015				2014			2015			2014
Sales		$	6,120			$	2,594		$	11,214		$	8,123
Net earnings (loss)		$	(123	)		$	172		$	(11)		$	494
Preferred Stock dividends			(180	)			(180)			(540)			(540)
Net loss attributable to common shareholders		$	(303	)		$	(8)		$	(551)		$	(46)
Net earnings attributable to Berkshire Hathaway Shareholders *		$	115			$	198		$	315		$	491

  * Includes dividends earned on Preferred Stock and Berkshire’s share of net loss attributable to Kraft Heinz common shareholders, net of applicable income taxes.

Kraft Heinz (previously Heinz Holding) [Member]

Summary of investments in Kraft Heinz

Our investments in Kraft Heinz are summarized as follows (in millions).

	Carrying Value
	September 30, 2015			December 31, 2014
Common stock		$	15,816		$	3,950
Preferred Stock			7,710			7,710
		$	23,526		$	11,660

XML

Fair value measurements - Significant unobservable inputs (Detail) - Significant Unobservable Inputs (Level 3) [Member] - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Net Derivative Contract Liabilities [Member]
Fair value measurements Significant unobservable inputs [Line Items]
Beginning Balance	$ (4,759)	$ (5,255)
Gains (losses) included in earnings	467	644
Gains (losses) included in other comprehensive income	(5)	4
Gains (losses) included in regulatory assets and liabilities	(21)	(3)
Acquisitions, dispositions and settlements	(65)
Dispositions and settlements		(1)
Transfers into/out of Level 3	3	(35)
Ending Balance	(4,380)	(4,646)
Fixed Maturities [Member]
Fair value measurements Significant unobservable inputs [Line Items]
Beginning Balance	8	372
Gains (losses) included in other comprehensive income		13
Dispositions and settlements		(1)
Acquisitions, dispositions and settlements	103
Transfers into/out of Level 3		(375)
Ending Balance	111	9
Equity Securities and Other Investments [Member]
Fair value measurements Significant unobservable inputs [Line Items]
Beginning Balance	21,996	17,958
Gains (losses) included in other comprehensive income	(1,722)	1,228
Transfers into/out of Level 3		(6)
Ending Balance	$ 20,274	$ 19,180

XML

Derivative contracts - gains and losses (Detail) - Finance and Financial Products [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gains/losses	$ (764)	$ 258	$ 380	$ 649
Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gains/losses	(764)	258	380	649
Not Designated as Hedging Instrument [Member] | Equity Index Put Options [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gains/losses	(802)	223	371	156
Not Designated as Hedging Instrument [Member] | Credit Default [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gains/losses	$ 38	$ 35	$ 9	492
Not Designated as Hedging Instrument [Member] | Other, Principally Interest Rate and Foreign Currency [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gains/losses				$ 1

XML

Other investments (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Insurance and Other [Member]
Other Investments [Line Items]
Other investments, Fair Value	$ 15,011	$ 16,346
Finance and Financial Products [Member]
Other Investments [Line Items]
Other investments, Fair Value	5,565	5,978
Available-for-sale Securities [Member]
Other Investments [Line Items]
Other investments, Cost	13,022	13,022
Other investments, Fair Value	20,576	22,324
Available-for-sale Securities [Member] | Insurance and Other [Member]
Other Investments [Line Items]
Other investments, Cost	9,970	9,970
Other investments, Fair Value	15,011	16,346
Available-for-sale Securities [Member] | Finance and Financial Products [Member]
Other Investments [Line Items]
Other investments, Cost	3,052	3,052
Other investments, Fair Value	$ 5,565	$ 5,978

XML

Notes payable and other borrowings (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Insurance and Other [Member]
Notes payable and other borrowings [Line Items]
Notes payable and other borrowings	$ 14,556	$ 11,894
Insurance and Other [Member] | Berkshire Hathaway (Parent) [Member]
Notes payable and other borrowings [Line Items]
Notes payable and other borrowings	$ 9,903	8,354
Weighted average interest rate, percentage	2.20%
Insurance and Other [Member] | Berkshire Hathaway (Parent) [Member] | Minimum [Member]
Notes payable and other borrowings [Line Items]
Debt maturity year	2015
Insurance and Other [Member] | Berkshire Hathaway (Parent) [Member] | Maximum [Member]
Notes payable and other borrowings [Line Items]
Debt maturity year	2047
Insurance and Other [Member] | Insurance and Other Subsidiaries [Member]
Notes payable and other borrowings [Line Items]
Short-term borrowings	$ 1,909	839
Other borrowings	$ 2,744	2,701
Short-term debt, weighted average interest rate	1.80%
Weighted average interest rate, percentage	6.00%
Insurance and Other [Member] | Insurance and Other Subsidiaries [Member] | Minimum [Member]
Notes payable and other borrowings [Line Items]
Debt maturity year	2015
Insurance and Other [Member] | Insurance and Other Subsidiaries [Member] | Maximum [Member]
Notes payable and other borrowings [Line Items]
Debt maturity year	2044
Railroad, Utilities and Energy [Member]
Notes payable and other borrowings [Line Items]
Notes payable and other borrowings	$ 57,872	55,579
Railroad, Utilities and Energy [Member] | Berkshire Hathaway Energy [Member]
Notes payable and other borrowings [Line Items]
Weighted average interest rate, percentage	5.10%
Senior unsecured debt	$ 7,860	7,860
Railroad, Utilities and Energy [Member] | Berkshire Hathaway Energy [Member] | Minimum [Member]
Notes payable and other borrowings [Line Items]
Debt maturity year	2017
Railroad, Utilities and Energy [Member] | Berkshire Hathaway Energy [Member] | Maximum [Member]
Notes payable and other borrowings [Line Items]
Debt maturity year	2045
Railroad, Utilities and Energy [Member] | Berkshire Hathaway Energy Subsidiaries [Member]
Notes payable and other borrowings [Line Items]
Notes payable and other borrowings	$ 28,130	28,439
Weighted average interest rate, percentage	4.90%
Railroad, Utilities and Energy [Member] | Berkshire Hathaway Energy Subsidiaries [Member] | Minimum [Member]
Notes payable and other borrowings [Line Items]
Debt maturity year	2015
Railroad, Utilities and Energy [Member] | Berkshire Hathaway Energy Subsidiaries [Member] | Maximum [Member]
Notes payable and other borrowings [Line Items]
Debt maturity year	2064
Railroad, Utilities and Energy [Member] | BNSF [Member]
Notes payable and other borrowings [Line Items]
Notes payable and other borrowings	$ 21,882	19,280
Weighted average interest rate, percentage	4.90%
Railroad, Utilities and Energy [Member] | BNSF [Member] | Minimum [Member]
Notes payable and other borrowings [Line Items]
Debt maturity year	2015
Railroad, Utilities and Energy [Member] | BNSF [Member] | Maximum [Member]
Notes payable and other borrowings [Line Items]
Debt maturity year	2097
Finance and Financial Products [Member]
Notes payable and other borrowings [Line Items]
Notes payable and other borrowings	$ 12,483	12,736
Finance and Financial Products [Member] | Berkshire Hathaway Finance Corporation [Member]
Notes payable and other borrowings [Line Items]
Notes payable and other borrowings	$ 11,178	11,178
Weighted average interest rate, percentage	2.70%
Finance and Financial Products [Member] | Berkshire Hathaway Finance Corporation [Member] | Minimum [Member]
Notes payable and other borrowings [Line Items]
Debt maturity year	2015
Finance and Financial Products [Member] | Berkshire Hathaway Finance Corporation [Member] | Maximum [Member]
Notes payable and other borrowings [Line Items]
Debt maturity year	2043
Finance and Financial Products [Member] | Other Finance Subsidiaries [Member]
Notes payable and other borrowings [Line Items]
Notes payable and other borrowings	$ 1,305	$ 1,558
Weighted average interest rate, percentage	5.30%
Finance and Financial Products [Member] | Other Finance Subsidiaries [Member] | Minimum [Member]
Notes payable and other borrowings [Line Items]
Debt maturity year	2015
Finance and Financial Products [Member] | Other Finance Subsidiaries [Member] | Maximum [Member]
Notes payable and other borrowings [Line Items]
Debt maturity year	2036

XML

Contingencies and Commitments - Narrative (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	9 Months Ended
	Sep. 30, 2015	Aug. 08, 2015	Nov. 13, 2014
Duracell Company [Member] | Procter & Gamble Company [Member] | Purchase Agreement [Member]
Commitments and Contingencies [Line Items]
Cash to be acquired at closing			$ 1,700
Value of shares agreed to exchange in business acquisition			$ 3,800
Precision Castparts Corp [Member] | Purchase Agreement [Member]
Commitments and Contingencies [Line Items]
Potential business acquisition, cash price per share		$ 235
Investment, number of shares owned		2.7
Percentage of shares owned prior to acquisition		1.96%
Cash committed to be paid for a potential business acquisition		$ 31,700
Berkadia Commercial Mortgage (investee) [Member]
Commitments and Contingencies [Line Items]
Voting interest in investee	50.00%
Commercial paper outstanding	$ 2,470
Berkadia Commercial Mortgage (investee) [Member] | Leucadia National Corporation (venture partner) [Member]
Commitments and Contingencies [Line Items]
Voting interest in investee	50.00%
Berkshire Hathaway Insurance Group [Member]
Commitments and Contingencies [Line Items]
Reimbursement rate from joint venture partner of Company's surety bond claim losses	50.00%
Surety bonds [Member] | Berkshire Hathaway Insurance Group [Member]
Commitments and Contingencies [Line Items]
Guarantee obligation, maximum amount of exposure	$ 2,500

XML

Common stock (Detail)	9 Months Ended
	Sep. 30, 2015 shares
Class A [Member]
Class of Stock [Line Items]
Shares issued, beginning of year (in shares)	838,019
Conversions of Class A common stock to Class B common stock and exercises of replacement stock options issued in a business acquisition	(15,058)
Shares issued, end of period (in shares)	822,961
Treasury shares, beginning of year	(11,680)
Treasury shares, end of period	(11,680)
Outstanding, beginning of year (in shares)	826,339
Outstanding, end of period (in shares)	811,281
Class B [Member]
Class of Stock [Line Items]
Shares issued, beginning of year (in shares)	1,226,265,250
Conversions of Class A common stock to Class B common stock and exercises of replacement stock options issued in a business acquisition	23,255,846
Shares issued, end of period (in shares)	1,249,521,096
Treasury shares, beginning of year	(1,409,762)
Treasury shares, end of period	(1,409,762)
Outstanding, beginning of year (in shares)	1,224,855,488
Outstanding, end of period (in shares)	1,248,111,334

XML

Business segment data (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Segment Reporting Information [Line Items]
Revenues	$ 58,989	$ 51,199	$ 159,001	$ 146,414
Total earnings before income taxes	14,072	6,750	27,565	22,264
Operating Businesses [Member]
Segment Reporting Information [Line Items]
Revenues	51,625	51,240	150,329	142,574
Earnings before income taxes from operating businesses	6,909	6,896	19,234	18,742
Operating Businesses [Member] | Berkshire Hathaway Insurance Group [Member]
Segment Reporting Information [Line Items]
Revenues	11,560	13,674	33,928	34,865
Earnings before income taxes from operating businesses	1,688	1,926	4,808	5,722
Operating Businesses [Member] | Berkshire Hathaway Insurance Group [Member] | GEICO [Member]
Segment Reporting Information [Line Items]
Premiums earned	5,788	5,203	16,792	15,168
Earnings before income taxes from operating businesses	258	264	471	1,010
Operating Businesses [Member] | Berkshire Hathaway Insurance Group [Member] | General Re [Member]
Segment Reporting Information [Line Items]
Premiums earned	1,405	1,566	4,397	4,733
Earnings before income taxes from operating businesses	(2)	126	58	322
Operating Businesses [Member] | Berkshire Hathaway Insurance Group [Member] | Berkshire Hathaway Reinsurance Group [Member]
Segment Reporting Information [Line Items]
Premiums earned	1,892	4,809	5,317	8,414
Earnings before income taxes from operating businesses	199	443	247	617
Operating Businesses [Member] | Berkshire Hathaway Insurance Group [Member] | Berkshire Hathaway Primary Group [Member]
Segment Reporting Information [Line Items]
Premiums earned	1,429	1,139	3,948	3,141
Earnings before income taxes from operating businesses	188	143	566	379
Operating Businesses [Member] | Berkshire Hathaway Insurance Group [Member] | Investment Income [Member]
Segment Reporting Information [Line Items]
Interest, dividend and other investment income	1,046	957	3,474	3,409
Earnings before income taxes from operating businesses	1,045	950	3,466	3,394
Operating Businesses [Member] | BNSF [Member]
Segment Reporting Information [Line Items]
Revenues	5,600	5,881	16,571	17,063
Earnings before income taxes from operating businesses	1,839	1,654	5,047	4,295
Operating Businesses [Member] | Berkshire Hathaway Energy [Member]
Segment Reporting Information [Line Items]
Revenues	5,144	4,853	14,018	13,344
Earnings before income taxes from operating businesses	1,153	1,051	2,398	2,248
Operating Businesses [Member] | McLane Company [Member]
Segment Reporting Information [Line Items]
Revenues	12,264	12,151	36,200	34,327
Earnings before income taxes from operating businesses	106	120	384	361
Operating Businesses [Member] | Manufacturing Businesses [Member]
Segment Reporting Information [Line Items]
Revenues	9,181	9,534	27,568	27,788
Earnings before income taxes from operating businesses	1,259	1,337	3,857	3,774
Operating Businesses [Member] | Service and Retailing Businesses [Member]
Segment Reporting Information [Line Items]
Revenues	6,151	3,493	16,966	10,456
Earnings before income taxes from operating businesses	378	355	1,260	1,095
Operating Businesses [Member] | Finance and Financial Products Reportable Segment [Member]
Segment Reporting Information [Line Items]
Revenues	1,725	1,654	5,078	4,731
Earnings before income taxes from operating businesses	486	453	1,480	1,247
Intersegment Eliminations and Other Reconciling Items [Member]
Segment Reporting Information [Line Items]
Investment and derivative gains/losses	7,502	(118)	9,105	3,770
Revenues	(138)	77	(433)	70
Interest expense	(83)	(79)	(391)	(233)
Earnings before income taxes from operating businesses	$ (256)	$ 51	$ (383)	$ (15)

XML

Notes payable and other borrowings - Narrative (Detail) € in Millions, $ in Millions	1 Months Ended			3 Months Ended	9 Months Ended
	Mar. 31, 2015 EUR (€)	Feb. 28, 2015 USD ($)	Jan. 31, 2015 USD ($)	Jun. 30, 2015 USD ($)	Sep. 30, 2015 USD ($)
Senior Notes [Member]
Debt Instrument [Line Items]
Repayment of debt		$ 1,700
Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Principal amount of debt issued | €	€ 3,000
Senior Unsecured Notes Due 2023 at 0.75% [Member]
Debt Instrument [Line Items]
Principal amount of debt issued | €	€ 750
Debt instrument, interest rate, stated percentage	0.75%
Senior Unsecured Notes Due 2027 at 1.125% [Member]
Debt Instrument [Line Items]
Principal amount of debt issued | €	€ 1,250
Debt instrument, interest rate, stated percentage	1.125%
Senior Unsecured Notes Due 2035 at 1.625% [Member]
Debt Instrument [Line Items]
Principal amount of debt issued | €	€ 1,000
Debt instrument, interest rate, stated percentage	1.625%
Berkshire Hathaway Finance Corporation [Member] | Senior Notes [Member] | Finance and Financial Products [Member]
Debt Instrument [Line Items]
Principal amount of debt issued			$ 1,000
Repayment of debt			1,000
Berkshire Hathaway Finance Corporation [Member] | Senior Notes Due 2017, Floating Rate [Member] | Finance and Financial Products [Member]
Debt Instrument [Line Items]
Principal amount of debt issued			400
Berkshire Hathaway Finance Corporation [Member] | Senior Notes Due 2018, Floating Rate [Member] | Finance and Financial Products [Member]
Debt Instrument [Line Items]
Principal amount of debt issued			$ 600
Berkshire Hathaway Subsidiaries [Member] | Line of Credit and Commercial Paper Facilities [Member]
Debt Instrument [Line Items]
Unused lines of credit available					$ 9,200
Berkshire Hathaway Energy Company and Subsidiaries [Member] | Line of Credit and Commercial Paper Facilities [Member]
Debt Instrument [Line Items]
Unused lines of credit available					5,400
Berkshire Hathaway (Parent) [Member] | Subsidiaries Excluding Berkshire Hathaway Finance Corporation [Member]
Debt Instrument [Line Items]
Guarantee obligation					3,300
BNSF [Member] | Senior Unsecured Debentures [Member] | Railroad, Utilities and Energy [Member]
Debt Instrument [Line Items]
Principal amount of debt issued					$ 2,500
BNSF [Member] | Senior Unsecured Debentures [Member] | Railroad, Utilities and Energy [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage					3.00%
BNSF [Member] | Senior Unsecured Debentures [Member] | Railroad, Utilities and Energy [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage					4.70%
BNSF [Member] | Senior Unsecured Debentures Due 2025 [Member] | Railroad, Utilities and Energy [Member]
Debt Instrument [Line Items]
Principal amount of debt issued					$ 850
BNSF [Member] | Senior Unsecured Debentures Due 2045 [Member] | Railroad, Utilities and Energy [Member]
Debt Instrument [Line Items]
Principal amount of debt issued					$ 1,650
BNSF [Member] | Secured Amortizing Debt Due 2028 [Member] | Railroad, Utilities and Energy [Member]
Debt Instrument [Line Items]
Principal amount of debt issued				$ 500

XML

Goodwill and other intangible assets - Intangible assets - Narrative (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 837	$ 854
Intangible assets with indefinite lives, excluding goodwill	$ 3,140		$ 2,586

XML

Accumulated other comprehensive income

9 Months Ended

Sep. 30, 2015

Equity [Abstract]

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 nine months ending September 30, 2015 and 2014 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
Nine months ending September 30, 2015
Balance at December 31, 2014		$	45,636			$	(1,957	)		$	(1,039)		$	92		$	42,732
Other comprehensive income, net before reclassifications			(7,958	)			(1,602	)			162			(113)			(9,511)
Reclassifications from accumulated other comprehensive income			(1,158	)			128				1			11			(1,018)
Balance at September 30, 2015		$	36,520			$	(3,431	)		$	(876)		$	(10)		$	32,203
Reclassifications from other comprehensive income into net earnings:
Investment gains/losses:
Insurance and other		$	(1,695	)		$	197			$	—		$	—		$	(1,498)
Finance and financial products			(86	)			—				—			—			(86)
Other			—				—				2			18			20
Reclassifications before income taxes			(1,781	)			197				2			18			(1,564)
Applicable income taxes			(623	)			69				1			7			(546)
		$	(1,158	)		$	128			$	1		$	11		$	(1,018)

	Unrealized appreciation of investments, net			Foreign currency translation			Prior service and actuarial gains/losses of defined benefit pension plans			Other				Accumulated other comprehensive income
Nine months ending September 30, 2014
Balance at December 31, 2013		$	44,042		$	(146)		$	46		$	83			$	44,025
Other comprehensive income, net before reclassifications			2,942			(852)			(15)			(5	)			2,070
Reclassifications from accumulated other comprehensive income			(1,971)			47			39			(24	)			(1,909	)
Balance at September 30, 2014		$	45,013		$	(951)		$	70		$	54			$	44,186
Reclassifications from other comprehensive income into net earnings:
Investment gains/losses:
Insurance and other		$	(2,960)		$	—		$	—		$	—			$	(2,960	)
Finance and financial products			(72)			—			—			—				(72	)
Other			—			47			51			(39	)			59
Reclassifications before income taxes			(3,032)			47			51			(39	)			(2,973	)
Applicable income taxes			(1,061)			—			12			(15	)			(1,064	)
		$	(1,971)		$	47		$	39		$	(24	)		$	(1,909	)

XML

Investments in fixed maturity securities - Carrying value by segment (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Summary of Investment Holdings [Line Items]
Investments in fixed maturity securities	$ 27,160	$ 27,636
Insurance and Other [Member]
Summary of Investment Holdings [Line Items]
Investments in fixed maturity securities	27,119	27,397
Finance and Financial Products [Member]
Summary of Investment Holdings [Line Items]
Investments in fixed maturity securities	$ 41	$ 239

XML

Fair value measurements (Tables)

9 Months Ended

Sep. 30, 2015

Fair Value Disclosures [Abstract]

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

Our financial assets and liabilities are summarized below as of September 30, 2015 and December 31, 2014 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)
September 30, 2015
Investments in fixed maturity securities:
U.S. Treasury, U.S. government corporations and agencies		$	3,819		$	3,819		$	2,542		$	1,277		$	—
States, municipalities and political subdivisions			1,868			1,868			—			1,868			—
Foreign governments			11,644			11,644			6,982			4,662			—
Corporate bonds			8,116			8,116			—			8,005			111
Mortgage-backed securities			1,713			1,713			—			1,713			—
Investments in equity securities			110,288			110,288			110,250			37			1
Investment in Kraft Heinz common stock			15,816			22,970			22,970			—			—
Investment in Kraft Heinz Preferred Stock			7,710			8,568			—			—			8,568
Other investments			20,576			20,576			303			—			20,273
Loans and finance receivables			12,686			13,067			—			16			13,051
Derivative contract assets (1)			109			109			—			10			99
Derivative contract liabilities:
Railroad, utilities and energy (1)			257			257			12			196			49
Finance and financial products:
Equity index put options			4,188			4,188			—			—			4,188
Credit default			242			242			—			—			242
Notes payable and other borrowings:
Insurance and other			14,556			14,716			—			14,716			—
Railroad, utilities and energy			57,872			63,044			—			63,044			—
Finance and financial products			12,483			12,918			—			12,433			485
December 31, 2014
Investments in fixed maturity securities:
U.S. Treasury, U.S. government corporations and agencies		$	2,930		$	2,930		$	2,264		$	666		$	—
States, municipalities and political subdivisions			1,912			1,912			—			1,912			—
Foreign governments			12,270			12,270			7,981			4,289			—
Corporate bonds			8,771			8,771			—			8,763			8
Mortgage-backed securities			1,753			1,753			—			1,753			—
Investments in equity securities			117,470			117,470			117,424			45			1
Investment in Kraft Heinz Preferred Stock			7,710			8,416			—			—			8,416
Other investments			22,324			22,324			329			—			21,995
Loans and finance receivables			12,566			12,891			—			33			12,858
Derivative contract assets (1)			108			108			1			13			94
Derivative contract liabilities:
Railroad, utilities and energy (1)			230			230			18			169			43
Finance and financial products:
Equity index put options			4,560			4,560			—			—			4,560
Credit default			250			250			—			—			250
Notes payable and other borrowings:
Insurance and other			11,894			12,484			—			12,484			—
Railroad, utilities and energy			55,579			62,802			—			62,802			—
Finance and financial products			12,736			13,417			—			12,846			571

⁽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 nine months ending September 30, 2015 and 2014 follow (in millions).

	Investments  in fixed maturity securities				Investments in equity securities and other  investments				Net  derivative  contract liabilities
Nine months ending September 30, 2015
Balance at December 31, 2014		$	8			$	21,996			$	(4,759	)
Gains (losses) included in:
Earnings			—				—				467
Other comprehensive income			—				(1,722	)			(5	)
Regulatory assets and liabilities			—				—				(21	)
Acquisitions, dispositions and settlements			103				—				(65	)
Transfers into/out of Level 3			—				—				3
Balance at September 30, 2015		$	111			$	20,274			$	(4,380	)
Nine months ending September 30, 2014
Balance at December 31, 2013		$	372			$	17,958			$	(5,255	)
Gains (losses) included in:
Earnings			—				—				644
Other comprehensive income			13				1,228				4
Regulatory assets and liabilities			—				—				(3	)
Dispositions and settlements			(1	)			—				(1	)
Transfers into/out of Level 3			(375	)			(6	)			(35	)
Balance at September 30, 2014		$	9			$	19,180			$	(4,646	)

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

Quantitative information as of September 30, 2015, 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	$	14,526	Discounted cash flow	Expected duration	7 years
				Discount for transferability  restrictions and subordination	134 basis points
Common stock warrants		5,747	Warrant pricing model	Discount for transferability  and hedging restrictions	8%
Net derivative liabilities:
Equity index put options		4,188	Option pricing model	Volatility	22%
Credit default		242	Discounted cash flow	Credit spreads	31 basis points

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Supplemental cash flow information (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Supplemental Cash Flow Information [Line Items]
Cash paid during the period for income taxes	$ 2,575	$ 3,201
Equity securities exchanged in connection with business acquisitions		2,478
Liabilities assumed in connection with business acquisitions	2,792	1,459
Treasury stock acquired in connection with business acquisition		400
Insurance and Other [Member]
Supplemental Cash Flow Information [Line Items]
Cash paid during the period for interest	312	321
Railroad, Utilities and Energy [Member]
Supplemental Cash Flow Information [Line Items]
Cash paid during the period for interest	2,043	1,864
Finance and Financial Products [Member]
Supplemental Cash Flow Information [Line Items]
Cash paid during the period for interest	$ 274	$ 332

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

9 Months Ended

Sep. 30, 2015

Insurance and Other [Member]

Schedule of property, plant and equipment

Property, plant and equipment of our insurance and other businesses is summarized below (in millions).

	Range of   estimated useful life	September 30,  2015			December 31,  2014
Land	—		$   1,614			$   1,171
Buildings and improvements	2 – 40 years		7,250			6,600
Machinery and equipment	3 – 25 years		16,673			16,413
Furniture, fixtures and other	2 – 18 years		3,812			3,136
			29,349			27,320
Accumulated depreciation			(13,884	)		(13,167	)
			$  15,465			$  14,153

Railroad, Utilities and Energy [Member]

Schedule of property, plant and equipment

Property, plant and equipment of our railroad and our utilities and energy businesses is summarized below (in millions).

	Range of   estimated useful life	September 30,   2015		December 31,   2014
Railroad:
Land	—		$      6,031		$      5,983
Track structure and other roadway	7 – 100 years		44,902		42,588
Locomotives, freight cars and other equipment	6 – 40 years		10,866		9,493
Construction in progress	—		1,257		1,292
Utilities and energy:
Utility generation, distribution and transmission system	5 – 80 years		67,044		64,645
Interstate pipeline assets	3 – 80 years		6,761		6,660
Independent power plants and other assets	3 – 30 years		5,574		5,035
Construction in progress	—		4,160		5,194
			146,595		140,890
Accumulated depreciation			(28,018)		(25,836)
			$  118,577		$  115,054

Finance and Financial Products [Member]

Schedule of property, plant and equipment

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

	Range of estimated useful life	September 30,    2015			December 31,   2014
Assets held for lease	5 – 30 years		$   11,222			$    9,810
Land	—		221			227
Buildings, machinery and other	3 – 50 years		1,170			1,179
			12,613			11,216
Accumulated depreciation			(3,322	)		(3,179	)
			$     9,291			$    8,037

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Investments in fixed maturity securities - Amortized cost and estimated fair value of securities with fixed maturities (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Summary of Investment Holdings [Line Items]
Due in one year or less - amortized cost	$ 8,103
Due after one year through five years - amortized cost	11,635
Due after five years through ten years - amortized cost	1,897
Due after ten years - amortized cost	2,723
Amortized cost of fixed maturity securities	25,884	$ 26,023
Due in one year or less - fair value	8,112
Due after one year through five years - fair value	12,134
Due after five years through ten years - fair value	2,024
Due after ten years - fair value	3,177
Fair value of fixed maturity securities	27,160	27,636
Mortgage-backed securities [Member]
Summary of Investment Holdings [Line Items]
Amortized cost of mortgage-backed securities	1,526
Amortized cost of fixed maturity securities	1,526	1,555
Fair value of mortgage-backed securities	1,713
Fair value of fixed maturity securities	$ 1,713	$ 1,753

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Property, plant and equipment and assets held for lease (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Insurance and Other [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 29,349	$ 27,320
Property, plant and equipment, accumulated depreciation	(13,884)	(13,167)
Total property, plant and equipment, net	15,465	14,153
Insurance and Other [Member] | Buildings and improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	7,250	6,600
Insurance and Other [Member] | Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	16,673	16,413
Insurance and Other [Member] | Furniture, fixtures and other [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	3,812	3,136
Insurance and Other [Member] | Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,614	1,171
Railroad [Member] | Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	6,031	5,983
Railroad [Member] | Track structure and other roadway [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	44,902	42,588
Railroad [Member] | Locomotives, freight cars and other equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	10,866	9,493
Railroad [Member] | Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,257	1,292
Utilities and Energy [Member] | Utility generation, distribution and transmission system [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	67,044	64,645
Utilities and Energy [Member] | Interstate pipeline assets [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	6,761	6,660
Utilities and Energy [Member] | Independent power plants and other assets [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	5,574	5,035
Utilities and Energy [Member] | Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	4,160	5,194
Railroad, Utilities and Energy [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	146,595	140,890
Property, plant and equipment, accumulated depreciation	(28,018)	(25,836)
Total property, plant and equipment, net	118,577	115,054
Finance and Financial Products [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment and assets held for lease, gross	12,613	11,216
Property, plant and equipment and assets held for lease, accumulated depreciation	(3,322)	(3,179)
Total property, plant and equipment and assets held for lease, net	9,291	8,037
Finance and Financial Products [Member] | Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment and assets held for lease, gross	221	227
Finance and Financial Products [Member] | Assets held for lease [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment and assets held for lease, gross	11,222	9,810
Finance and Financial Products [Member] | Buildings, machinery and other [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment and assets held for lease, gross	$ 1,170	$ 1,179
Minimum [Member] | Insurance and Other [Member] | Buildings and improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	2 years
Minimum [Member] | Insurance and Other [Member] | Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	3 years
Minimum [Member] | Insurance and Other [Member] | Furniture, fixtures and other [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	2 years
Minimum [Member] | Railroad [Member] | Track structure and other roadway [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	7 years
Minimum [Member] | Railroad [Member] | Locomotives, freight cars and other equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	6 years
Minimum [Member] | Utilities and Energy [Member] | Utility generation, distribution and transmission system [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	5 years
Minimum [Member] | Utilities and Energy [Member] | Interstate pipeline assets [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	3 years
Minimum [Member] | Utilities and Energy [Member] | Independent power plants and other assets [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	3 years
Minimum [Member] | Finance and Financial Products [Member] | Assets held for lease [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	5 years
Minimum [Member] | Finance and Financial Products [Member] | Buildings, machinery and other [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	3 years
Maximum [Member] | Insurance and Other [Member] | Buildings and improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	40 years
Maximum [Member] | Insurance and Other [Member] | Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	25 years
Maximum [Member] | Insurance and Other [Member] | Furniture, fixtures and other [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	18 years
Maximum [Member] | Railroad [Member] | Track structure and other roadway [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	100 years
Maximum [Member] | Railroad [Member] | Locomotives, freight cars and other equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	40 years
Maximum [Member] | Utilities and Energy [Member] | Utility generation, distribution and transmission system [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	80 years
Maximum [Member] | Utilities and Energy [Member] | Interstate pipeline assets [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	80 years
Maximum [Member] | Utilities and Energy [Member] | Independent power plants and other assets [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	30 years
Maximum [Member] | Finance and Financial Products [Member] | Assets held for lease [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	30 years
Maximum [Member] | Finance and Financial Products [Member] | Buildings, machinery and other [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	50 years

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Investments in The Kraft Heinz Company - Summarized Consolidated Financial Information (Detail) - Kraft Heinz (previously Heinz Holding) [Member] - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014	Dec. 28, 2014
Schedule of Equity Method Investments [Line Items]
Assets		$ 121,792		$ 121,792		$ 36,535
Liabilities		54,433		54,433		$ 20,850
Sales		6,120	$ 2,594	11,214	$ 8,123
Net earnings (loss)		(123)	172	(11)	494
Preferred Stock dividends		(180)	(180)	(540)	(540)
Net loss attributable to common shareholders		(303)	(8)	(551)	(46)
Net earnings attributable to Berkshire Hathaway Shareholders	[1]	$ 115	$ 198	$ 315	$ 491

[1] Includes dividends earned on Preferred Stock and Berkshire's share of net loss attributable to Kraft Heinz common shareholders, net of applicable income taxes.

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Significant business acquisitions - Estimated fair values of assets acquired and liabilities assumed (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Dec. 01, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Goodwill	$ 62,692		$ 60,714		$ 57,011
AltaLink [Member]
Business Acquisition [Line Items]
Cash and investments				$ 15
Property, plant and equipment				5,610
Goodwill				1,731
Other assets				287
Assets acquired				7,643
Accounts payable, accruals and other liabilities				1,064
Notes payable and other borrowings				3,851
Liabilities assumed				4,915
Net assets				$ 2,728
Berkshire Hathaway Automotive (formerly Van Tuyl Group) [Member]
Business Acquisition [Line Items]
Cash and investments		$ 1,274
Inventories		1,209
Property, plant and equipment		1,034
Goodwill		1,719
Other assets		1,401
Assets acquired		6,637
Accounts payable, accruals and other liabilities		1,396
Notes payable and other borrowings		1,129
Liabilities assumed		2,525
Net assets		$ 4,112

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New accounting pronouncements

9 Months Ended

Sep. 30, 2015

Accounting Changes and Error Corrections [Abstract]

New accounting pronouncements

Note 2. New accounting pronouncements

In April 2015, the FASB issued ASU 2015-05 “Intangibles—Goodwill and Other—Internal-Use Software,” which clarifies that software licenses contained in a cloud computing arrangement should be capitalized if the customer has the right to take possession of the software and the ability to run the software outside of the cloud computing arrangement. ASU 2015-05 is effective for annual periods beginning after December 15, 2015 and may be adopted prospectively or retrospectively. Early adoption is permitted. In April 2015, the FASB also issued ASU 2015-03 “Interest—Imputation of Interest,” which requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, instead of as an asset. The recognition and measurement guidance for debt issuance costs under current GAAP is not affected by this pronouncement. ASU 2015-03 is effective for reporting periods beginning after December 15, 2015 and should be adopted retrospectively. Early adoption is permitted. We do not expect that the adoption of ASU 2015-05 and ASU 2015-03 will have a material impact on our Consolidated Financial Statements.

In May 2014, the FASB issued ASU 2014-09 “Revenue from Contracts with Customers.” ASU 2014-09 applies to contracts with customers, excluding, most notably, insurance and leasing contracts. ASU 2014-09 prescribes a framework for accounting for revenues from contracts within its scope, including (a) identification of the contract, (b) identification of the performance obligations under the contract, (c) determination of the transaction price, (d) allocation of the transaction price to the identified performance obligations and (e) recognition of revenues as the identified performance obligations are satisfied. ASU 2014-09 also prescribes additional disclosures and financial statement presentations. In August 2015, the FASB deferred the effective date of ASU 2014-09 to reporting periods beginning after December 15, 2017. Early adoption is permitted for reporting periods beginning after December 15, 2016. ASU 2014-09 may be adopted retrospectively or under a modified retrospective method where the cumulative effect is recognized at the date of initial application. We are evaluating the effect that the adoption of ASU 2014-09 will have on our Consolidated Financial Statements.

In May 2015, the FASB issued ASU 2015-09 “Financial Services—Insurance—Disclosures about Short-Duration Contracts,” which requires additional disclosures in annual and interim reporting periods by insurance entities regarding liabilities for unpaid claims and claim adjustment expenses, and any changes in assumptions or methodologies for calculations of such liabilities. ASU 2015-09 is effective for annual periods beginning after December 15, 2015 and interim periods beginning after December 15, 2016. Early adoption is permitted. We are evaluating the effect that the adoption of ASU 2015-09 will have on our Consolidated Financial Statements.

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Investment gains/losses (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Gain (Loss) on Investments [Line Items]
OTTI losses	$ (26)	$ (678)	$ (26)	$ (697)
Investment gains/losses	8,266	(376)	8,725	3,121
Fixed Maturities [Member]
Gain (Loss) on Investments [Line Items]
Gross gains	6	4	88	233
Gross losses	(44)	(25)	(128)	(73)
Equity Securities [Member]
Gain (Loss) on Investments [Line Items]
Gross gains	8,407	354	8,855	3,749
Gross losses	(75)	(38)	(95)	(41)
Other Types of Investments [Member]
Gain (Loss) on Investments [Line Items]
Other investment gains/losses	$ (2)	$ 7	$ 31	$ (50)

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Common stock (Tables)

9 Months Ended

Sep. 30, 2015

Equity [Abstract]

Changes in issued, treasury and outstanding Berkshire common stock

Changes in Berkshire’s issued, treasury and outstanding common stock during the first nine months of 2015 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, 2014		838,019		(11,680)		826,339		1,226,265,250		(1,409,762)		1,224,855,488
Conversions of Class A common stock to Class B common stock and exercises of replacement stock options issued in a business acquisition		(15,058)		—		(15,058)		23,255,846		—		23,255,846
Balance at September 30, 2015		822,961		(11,680)		811,281		1,249,521,096		(1,409,762)		1,248,111,334

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Significant business acquisitions (Tables)

9 Months Ended

Sep. 30, 2015

Business Combinations [Abstract]

Schedule of estimated fair values of assets acquired and liabilities assumed

Preliminary fair values of identified assets acquired and liabilities assumed and residual goodwill at their respective acquisition dates are summarized as follows (in millions).

	Berkshire Hathaway Automotive		AltaLink
Cash and investments		$    1,274		$         15
Inventories		1,209		—
Property, plant and equipment		1,034		5,610
Goodwill		1,719		1,731
Other assets		1,401		287
Assets acquired		$    6,637		$    7,643
Accounts payable, accruals and other liabilities		$    1,396		$    1,064
Notes payable and other borrowings		1,129		3,851
Liabilities assumed		$    2,525		$    4,915
Net assets		$    4,112		$    2,728

Schedule of pro forma consolidated earnings data

The following table sets forth certain unaudited pro forma consolidated earnings data for the first nine months of 2014 as if the acquisitions discussed previously were consummated on the same terms at the beginning of the year preceding their respective acquisition dates (in millions, except the per share amount). Pro forma data for the first nine months of 2015 was not materially different from the amounts reflected in the Consolidated Statement of Earnings.

	First nine months  2014
Revenues		$	153,079
Net earnings attributable to Berkshire Hathaway shareholders			15,838
Net earnings per equivalent Class A common share attributable to Berkshire Hathaway shareholders			9,636

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New accounting pronouncements (Policies)

9 Months Ended

Sep. 30, 2015

Accounting Changes and Error Corrections [Abstract]

New accounting pronouncements

In April 2015, the FASB issued ASU 2015-05 “Intangibles—Goodwill and Other—Internal-Use Software,” which clarifies that software licenses contained in a cloud computing arrangement should be capitalized if the customer has the right to take possession of the software and the ability to run the software outside of the cloud computing arrangement. ASU 2015-05 is effective for annual periods beginning after December 15, 2015 and may be adopted prospectively or retrospectively. Early adoption is permitted. In April 2015, the FASB also issued ASU 2015-03 “Interest—Imputation of Interest,” which requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, instead of as an asset. The recognition and measurement guidance for debt issuance costs under current GAAP is not affected by this pronouncement. ASU 2015-03 is effective for reporting periods beginning after December 15, 2015 and should be adopted retrospectively. Early adoption is permitted. We do not expect that the adoption of ASU 2015-05 and ASU 2015-03 will have a material impact on our Consolidated Financial Statements.

In May 2014, the FASB issued ASU 2014-09 “Revenue from Contracts with Customers.” ASU 2014-09 applies to contracts with customers, excluding, most notably, insurance and leasing contracts. ASU 2014-09 prescribes a framework for accounting for revenues from contracts within its scope, including (a) identification of the contract, (b) identification of the performance obligations under the contract, (c) determination of the transaction price, (d) allocation of the transaction price to the identified performance obligations and (e) recognition of revenues as the identified performance obligations are satisfied. ASU 2014-09 also prescribes additional disclosures and financial statement presentations. In August 2015, the FASB deferred the effective date of ASU 2014-09 to reporting periods beginning after December 15, 2017. Early adoption is permitted for reporting periods beginning after December 15, 2016. ASU 2014-09 may be adopted retrospectively or under a modified retrospective method where the cumulative effect is recognized at the date of initial application. We are evaluating the effect that the adoption of ASU 2014-09 will have on our Consolidated Financial Statements.

In May 2015, the FASB issued ASU 2015-09 “Financial Services—Insurance—Disclosures about Short-Duration Contracts,” which requires additional disclosures in annual and interim reporting periods by insurance entities regarding liabilities for unpaid claims and claim adjustment expenses, and any changes in assumptions or methodologies for calculations of such liabilities. ASU 2015-09 is effective for annual periods beginning after December 15, 2015 and interim periods beginning after December 15, 2016. Early adoption is permitted. We are evaluating the effect that the adoption of ASU 2015-09 will have on our Consolidated Financial Statements.

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Investments in equity securities - Fair value by segment (Detail) - USD ($) $ in Millions		Sep. 30, 2015		Dec. 31, 2014
Summary of Investment Holdings [Line Items]
Investments in equity securities		$ 110,288	[1]	$ 117,470	[2]
Insurance and Other [Member]
Summary of Investment Holdings [Line Items]
Investments in equity securities		106,104		115,529
Railroad, Utilities and Energy [Member] | Other Assets [Member]
Summary of Investment Holdings [Line Items]
Investments in equity securities	[3]	1,185		881
Finance and Financial Products [Member]
Summary of Investment Holdings [Line Items]
Investments in equity securities		$ 2,999		$ 1,060

[1] Approximately 58% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company - $11.2 billion; Wells Fargo & Company - $25.2 billion; International Business Machines Corporation ("IBM") - $11.7 billion; and The Coca-Cola Company - $16.0 billion).

[2] Approximately 59% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company - $14.1 billion; Wells Fargo & Company - $26.5 billion; International Business Machines Corporation ("IBM") - $12.3 billion; and The Coca-Cola Company - $16.9 billion).

[3] Included in other assets.

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Accumulated other comprehensive income (Tables)

9 Months Ended

Sep. 30, 2015

Equity [Abstract]

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 nine months ending September 30, 2015 and 2014 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
Nine months ending September 30, 2015
Balance at December 31, 2014		$	45,636			$	(1,957	)		$	(1,039)		$	92		$	42,732
Other comprehensive income, net before reclassifications			(7,958	)			(1,602	)			162			(113)			(9,511)
Reclassifications from accumulated other comprehensive income			(1,158	)			128				1			11			(1,018)
Balance at September 30, 2015		$	36,520			$	(3,431	)		$	(876)		$	(10)		$	32,203
Reclassifications from other comprehensive income into net earnings:
Investment gains/losses:
Insurance and other		$	(1,695	)		$	197			$	—		$	—		$	(1,498)
Finance and financial products			(86	)			—				—			—			(86)
Other			—				—				2			18			20
Reclassifications before income taxes			(1,781	)			197				2			18			(1,564)
Applicable income taxes			(623	)			69				1			7			(546)
		$	(1,158	)		$	128			$	1		$	11		$	(1,018)

	Unrealized appreciation of investments, net			Foreign currency translation			Prior service and actuarial gains/losses of defined benefit pension plans			Other				Accumulated other comprehensive income
Nine months ending September 30, 2014
Balance at December 31, 2013		$	44,042		$	(146)		$	46		$	83			$	44,025
Other comprehensive income, net before reclassifications			2,942			(852)			(15)			(5	)			2,070
Reclassifications from accumulated other comprehensive income			(1,971)			47			39			(24	)			(1,909	)
Balance at September 30, 2014		$	45,013		$	(951)		$	70		$	54			$	44,186
Reclassifications from other comprehensive income into net earnings:
Investment gains/losses:
Insurance and other		$	(2,960)		$	—		$	—		$	—			$	(2,960	)
Finance and financial products			(72)			—			—			—				(72	)
Other			—			47			51			(39	)			59
Reclassifications before income taxes			(3,032)			47			51			(39	)			(2,973	)
Applicable income taxes			(1,061)			—			12			(15	)			(1,064	)
		$	(1,971)		$	47		$	39		$	(24	)		$	(1,909	)

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Investments in fixed maturity securities (Tables)

9 Months Ended

Sep. 30, 2015

Investments, Debt and Equity Securities [Abstract]

Schedule of investments in securities with fixed maturities

Investments in securities with fixed maturities as of September 30, 2015 and December 31, 2014 are summarized by type below (in millions).

	Amortized Cost			Unrealized Gains			Unrealized Losses				Fair Value
September 30, 2015
U.S. Treasury, U.S. government corporations and agencies		$	3,796		$	24		$	(1	)		$	3,819
States, municipalities and political subdivisions			1,788			82			(2	)			1,868
Foreign governments			11,415			306			(77	)			11,644
Corporate bonds			7,359			778			(21	)			8,116
Mortgage-backed securities			1,526			191			(4	)			1,713
		$	25,884		$	1,381		$	(105	)		$	27,160
December 31, 2014
U.S. Treasury, U.S. government corporations and agencies		$	2,921		$	14		$	(5	)		$	2,930
States, municipalities and political subdivisions			1,820			93			(1	)			1,912
Foreign governments			12,023			373			(126	)			12,270
Corporate bonds			7,704			1,072			(5	)			8,771
Mortgage-backed securities			1,555			202			(4	)			1,753
		$	26,023		$	1,754		$	(141	)		$	27,636

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

	September 30, 2015			December 31, 2014
Insurance and other		$	27,119		$	27,397
Finance and financial products			41			239
		$	27,160		$	27,636

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 September 30, 2015 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		$8,103		$11,635		$1,897		$2,723		$1,526		$25,884
Fair value		8,112		12,134		2,024		3,177		1,713		27,160

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Investments in equity securities (Tables)

9 Months Ended

Sep. 30, 2015

Investments, Debt and Equity Securities [Abstract]

Schedule of investments in equity securities

Investments in equity securities as of September 30, 2015 and December 31, 2014 are summarized based on the primary industry of the investee in the table below (in millions).

	Cost Basis			Unrealized Gains			Unrealized Losses				Fair Value
September 30, 2015 *
Banks, insurance and finance		$	21,587		$	27,358		$	(86	)		$	48,859
Consumer products			6,893			16,620			(5	)			23,508
Commercial, industrial and other			34,567			6,243			(2,889	)			37,921
		$	63,047		$	50,221		$	(2,980	)		$	110,288

  * Approximately 58% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company – $11.2 billion; Wells Fargo & Company – $25.2 billion; International Business Machines Corporation (“IBM”) – $11.7 billion; and The Coca-Cola Company – $16.0 billion).

	Cost Basis			Unrealized Gains			Unrealized Losses				Fair Value
December 31, 2014 *
Banks, insurance and finance		$	22,495		$	33,170		$	—			$	55,665
Consumer products			6,951			18,389			(1	)			25,339
Commercial, industrial and other			28,924			8,578			(1,036	)			36,466
		$	58,370		$	60,137		$	(1,037	)		$	117,470

  * Approximately 59% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company – $14.1 billion; Wells Fargo & Company – $26.5 billion; International Business Machines Corporation (“IBM”) – $12.3 billion; and The Coca-Cola Company – $16.9 billion).

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

	September 30, 2015			December 31, 2014
Insurance and other		$	106,104		$	115,529
Railroad, utilities and energy *			1,185			881
Finance and financial products			2,999			1,060
		$	110,288		$	117,470

  * Included in other assets.

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General

9 Months Ended

Sep. 30, 2015

Accounting Policies [Abstract]

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”) which includes 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.

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 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 values of liabilities associated with derivative contracts can cause significant variations in periodic net earnings.

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Other investments (Tables)

9 Months Ended

Sep. 30, 2015

Investments, All Other Investments [Abstract]

Schedule of other investments

Other investments are classified as available-for-sale and carried at fair value and are shown in our Consolidated Balance Sheets as follows (in millions).

	Cost				Fair Value
	September 30, 2015		December 31, 2014		September 30, 2015		December 31, 2014
Insurance and other		$9,970		$9,970		$15,011		$16,346
Finance and financial products		3,052		3,052		5,565		5,978
		$13,022		$13,022		$20,576		$22,324

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Common stock - Narrative (Detail)	9 Months Ended
	Sep. 30, 2015 USD ($) Vote shares	Dec. 31, 2014 shares
Class of Stock [Line Items]
Preferred Stock, shares authorized	1,000,000
Preferred Stock, shares issued	0
Preferred Stock, shares outstanding	0
Common Stock Repurchase Program [Member]
Class of Stock [Line Items]
Shares repurchase, authorization description	Berkshire's Board of Directors ("Berkshire's Board") has approved a common stock repurchase program under which Berkshire may repurchase its Class A and Class B shares at prices no higher than a 20% premium over the book value of the shares.
Minimum cash and cash equivalent threshold after repurchase of common stock shares, amount | $	$ 20,000,000,000
Number of shares acquired	0
Class B [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 | Vote	0.0001
Number of shares of Class B stock obtainable from converting one Class A share	1,500
Class A [Member]
Class of Stock [Line Items]
Number of votes entitled per share, number | Vote	1
Class A equivalent shares outstanding	1,643,355	1,642,909

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Supplemental cash flow information (Tables)

9 Months Ended

Sep. 30, 2015

Supplemental Cash Flow Elements [Abstract]

Schedule of supplemental cash flow information

A summary of supplemental cash flow information for the first nine months of 2015 and 2014 is presented in the following table (in millions).

	First Nine Months
	2015		2014
Cash paid during the period for:
Income taxes		$  2,575		$  3,201
Interest:
Insurance and other businesses		312		321
Railroad, utilities and energy businesses		2,043		1,864
Finance and financial products businesses		274		332
Non-cash investing and financing activities:
Equity securities exchanged in connection with business acquisitions		—		2,478
Liabilities assumed in connection with business acquisitions		2,792		1,459
Treasury stock acquired in connection with business acquisition		—		400

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Investments in equity securities (Detail) - USD ($) $ in Millions	Sep. 30, 2015		Dec. 31, 2014
Summary of Investment Holdings [Line Items]
Cost basis of investments	$ 63,047		$ 58,370
Unrealized gains on investments	50,221		60,137
Unrealized losses on investments	(2,980)		(1,037)
Fair value of investments	110,288	[1]	117,470	[2]
Banks, insurance and finance [Member]
Summary of Investment Holdings [Line Items]
Cost basis of investments	21,587		22,495
Unrealized gains on investments	27,358		33,170
Unrealized losses on investments	(86)
Fair value of investments	48,859		55,665
Consumer products [Member]
Summary of Investment Holdings [Line Items]
Cost basis of investments	6,893		6,951
Unrealized gains on investments	16,620		18,389
Unrealized losses on investments	(5)		(1)
Fair value of investments	23,508		25,339
Commercial, industrial and other [Member]
Summary of Investment Holdings [Line Items]
Cost basis of investments	34,567		28,924
Unrealized gains on investments	6,243		8,578
Unrealized losses on investments	(2,889)		(1,036)
Fair value of investments	$ 37,921		$ 36,466

[1] Approximately 58% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company - $11.2 billion; Wells Fargo & Company - $25.2 billion; International Business Machines Corporation ("IBM") - $11.7 billion; and The Coca-Cola Company - $16.0 billion).

[2] Approximately 59% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company - $14.1 billion; Wells Fargo & Company - $26.5 billion; International Business Machines Corporation ("IBM") - $12.3 billion; and The Coca-Cola Company - $16.9 billion).

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Derivative contracts (Detail) - Finance and Financial Products [Member] - USD ($) $ in Millions		Sep. 30, 2015	Dec. 31, 2014
Derivative [Line Items]
Liabilities		$ 4,430	$ 4,810
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Liabilities		4,430	4,810
Not Designated as Hedging Instrument [Member] | Equity Index Put Options [Member]
Derivative [Line Items]
Liabilities		4,188	4,560
Notional Value	[1]	28,239	29,469
Not Designated as Hedging Instrument [Member] | Credit Default [Member]
Derivative [Line Items]
Liabilities		242	250
Notional Value	[2]	$ 7,792	$ 7,792

[1] Represents the aggregate undiscounted amounts payable assuming that the value of each index is zero at each contract's expiration date. Certain of these contracts are denominated in foreign currencies. Notional amounts are based on the foreign currency exchange rates as of each balance sheet date.

[2] Represents the aggregate undiscounted amounts payable under the contracts assuming all underlying issuers default and the residual value of the specified obligations is zero.

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Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2015		Dec. 31, 2014
ASSETS
Cash and cash equivalents	$ 66,260		$ 63,269
Investments in fixed maturity securities	27,160		27,636
Investments in equity securities	110,288	[1]	117,470	[2]
Inventories	11,995		10,236
Goodwill	62,692		60,714
Total assets	545,468		526,186
LIABILITIES
Income taxes, principally deferred	62,266		61,235
Total liabilities	294,147		283,159
SHAREHOLDERS' EQUITY
Common stock	8		8
Capital in excess of par value	35,610		35,573
Accumulated other comprehensive income	32,203		42,732
Retained earnings	182,225		163,620
Treasury stock, at cost	(1,763)		(1,763)
Berkshire Hathaway shareholders' equity	248,283		240,170
Noncontrolling interests	3,038		2,857
Total shareholders' equity	251,321		243,027
Total liabilities and shareholders' equity	545,468		526,186
Insurance and Other [Member]
ASSETS
Cash and cash equivalents	56,166		57,974
Investments in fixed maturity securities	27,119		27,397
Investments in equity securities	106,104		115,529
Other investments	15,011		16,346
Investments in The Kraft Heinz Company	23,526		11,660
Receivables	24,484		21,852
Inventories	11,995		10,236
Property, plant and equipment	15,465		14,153
Goodwill	37,133		34,959
Other	23,906		23,763
Total assets	340,909		333,869
LIABILITIES
Losses and loss adjustment expenses	72,279		71,477
Unearned premiums	14,254		11,944
Life, annuity and health insurance benefits	14,266		13,261
Accounts payable, accruals and other liabilities	24,573		23,307
Notes payable and other borrowings	14,556		11,894
Total liabilities	139,928		131,883
Railroad, Utilities and Energy [Member]
ASSETS
Cash and cash equivalents	4,691		3,001
Property, plant and equipment	118,577		115,054
Goodwill	24,231		24,418
Other	17,445		16,343
Total assets	164,944		158,816
LIABILITIES
Accounts payable, accruals and other liabilities	15,204		15,595
Notes payable and other borrowings	57,872		55,579
Total liabilities	73,076		71,174
Finance and Financial Products [Member]
ASSETS
Cash and cash equivalents	5,403		2,294
Investments in fixed maturity securities	41		239
Investments in equity and fixed maturity securities	3,040		1,299
Investments in equity securities	2,999		1,060
Other investments	5,565		5,978
Loans and finance receivables	12,686		12,566
Property, plant and equipment and assets held for lease	9,291		8,037
Goodwill	1,328		1,337
Other	2,302		1,990
Total assets	39,615		33,501
LIABILITIES
Accounts payable, accruals and other liabilities	1,964		1,321
Derivative contract liabilities	4,430		4,810
Notes payable and other borrowings	12,483		12,736
Total liabilities	$ 18,877		$ 18,867

[1] Approximately 58% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company - $11.2 billion; Wells Fargo & Company - $25.2 billion; International Business Machines Corporation ("IBM") - $11.7 billion; and The Coca-Cola Company - $16.0 billion).

[2] Approximately 59% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company - $14.1 billion; Wells Fargo & Company - $26.5 billion; International Business Machines Corporation ("IBM") - $12.3 billion; and The Coca-Cola Company - $16.9 billion).

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Business segment data (Tables)

9 Months Ended

Sep. 30, 2015

Segment Reporting [Abstract]

Schedule of revenues and earnings by segment

Revenues by segment for the third quarter and first nine months of 2015 and 2014 were as follows (in millions).

	Third Quarter						First Nine Months
	2015			2014			2015			2014
Operating Businesses:
Insurance group:
Underwriting:
GEICO	$	5,788		$	5,203		$	16,792		$	15,168
General Re		1,405			1,566			4,397			4,733
Berkshire Hathaway Reinsurance Group		1,892			4,809			5,317			8,414
Berkshire Hathaway Primary Group		1,429			1,139			3,948			3,141
Investment income		1,046			957			3,474			3,409
Total insurance group		11,560			13,674			33,928			34,865
BNSF		5,600			5,881			16,571			17,063
Berkshire Hathaway Energy		5,144			4,853			14,018			13,344
McLane Company		12,264			12,151			36,200			34,327
Manufacturing		9,181			9,534			27,568			27,788
Service and retailing		6,151			3,493			16,966			10,456
Finance and financial products		1,725			1,654			5,078			4,731
		51,625			51,240			150,329			142,574
Reconciliation of segments to consolidated amount:
Investment and derivative gains/losses		7,502			(118	)		9,105			3,770
Eliminations and other		(138	)		77			(433	)		70
	$	58,989		$	51,199		$	159,001		$	146,414

Earnings before income taxes by segment for the third quarter and first nine months of 2015 and 2014 were as follows (in millions).

	Third Quarter						First Nine Months
	2015			2014			2015			2014
Operating Businesses:
Insurance group:
Underwriting:
GEICO	$	258		$	264		$	471		$	1,010
General Re		(2	)		126			58			322
Berkshire Hathaway Reinsurance Group		199			443			247			617
Berkshire Hathaway Primary Group		188			143			566			379
Investment income		1,045			950			3,466			3,394
Total insurance group		1,688			1,926			4,808			5,722
BNSF		1,839			1,654			5,047			4,295
Berkshire Hathaway Energy		1,153			1,051			2,398			2,248
McLane Company		106			120			384			361
Manufacturing		1,259			1,337			3,857			3,774
Service and retailing		378			355			1,260			1,095
Finance and financial products		486			453			1,480			1,247
		6,909			6,896			19,234			18,742
Reconciliation of segments to consolidated amount:
Investment and derivative gains/losses		7,502			(118	)		9,105			3,770
Interest expense, not allocated to segments		(83	)		(79	)		(391	)		(233	)
Eliminations and other		(256	)		51			(383	)		(15	)
	$	14,072		$	6,750		$	27,565		$	22,264

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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, 2013	$ 224,485	$ 35,480	$ 44,025	$ 143,748	$ (1,363)	$ 2,595
Net earnings	15,952			15,717		235
Other comprehensive income, net	182		161			21
Issuance (acquisition) of common stock	(294)	106			(400)
Transactions with noncontrolling interests	(23)	(18)				(5)
Balance at Sep. 30, 2014	240,302	35,568	44,186	159,465	(1,763)	2,846
Balance at Dec. 31, 2014	243,027	35,581	42,732	163,620	(1,763)	2,857
Net earnings	18,867			18,605		262
Other comprehensive income, net	(10,574)		(10,529)			(45)
Issuance of common stock	63	63
Transactions with noncontrolling interests	(62)	(26)				(36)
Balance at Sep. 30, 2015	$ 251,321	$ 35,618	$ 32,203	$ 182,225	$ (1,763)	$ 3,038

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Investments in The Kraft Heinz Company - Narrative (Detail)				1 Months Ended		3 Months Ended	9 Months Ended
	Jul. 02, 2015 shares	Jul. 01, 2015 USD ($) shares	Jun. 07, 2013 USD ($) shares	Jun. 30, 2015 $ / shares shares	Mar. 31, 2015 $ / shares	Sep. 30, 2015 USD ($)	Sep. 30, 2015 USD ($)
Kraft Heinz (previously Heinz Holding) [Member] | Common Stock [Member]
Schedule of Equity Method Investments [Line Items]
Reverse stock split ratio		0.443332
Non-cash pre-tax holding gain | $						$ 6,800,000,000	$ 6,800,000,000
Kraft Heinz (previously Heinz Holding) [Member] | Berkshire Hathaway (Parent) [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment ownership percentage		52.50%
Equity method investment ownership percentage after transactions	26.80%
Kraft Heinz (previously Heinz Holding) [Member] | Berkshire Hathaway (Parent) [Member] | Common Stock [Member]
Schedule of Equity Method Investments [Line Items]
Number of shares acquired		262,900,000	425,000,000
Number of shares acquired upon exercise of warrants				46,000,000
Exercise price for warrants, per share | $ / shares				$ 0.01
Purchase of common stock | $		$ 5,260,000,000
Investment, number of shares owned		325,400,000
Kraft Heinz (previously Heinz Holding) [Member] | Berkshire Hathaway (Parent) [Member] | Cumulative Compounding Preferred Stock [Member]
Schedule of Equity Method Investments [Line Items]
Investment in preferred stock, liquidation value | $			$ 8,000,000,000
Investment in preferred stock, stated dividend rate							9.00%
Kraft Heinz (previously Heinz Holding) [Member] | Berkshire Hathaway (Parent) [Member] | Common Stock, Cumulative Compounding Preferred Stock and Warrants [Member]
Schedule of Equity Method Investments [Line Items]
Purchase of preferred stock, common stock and warrants | $			$ 12,250,000,000
Kraft Heinz (previously Heinz Holding) [Member] | Berkshire Hathaway Inc. and 3G Capital [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment ownership percentage after transactions	51.00%
Kraft Heinz (previously Heinz Holding) [Member] | 3G Capital (venture partner) [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment ownership percentage after transactions	24.20%
Kraft Heinz (previously Heinz Holding) [Member] | 3G Capital (venture partner) [Member] | Common Stock [Member]
Schedule of Equity Method Investments [Line Items]
Number of shares acquired		237,100,000	425,000,000
Purchase of common stock | $		$ 4,740,000,000	$ 4,250,000,000
Management and Directors [Member] | Kraft Heinz (previously Heinz Holding) [Member] | Common Stock [Member]
Schedule of Equity Method Investments [Line Items]
Common shares reserved for issuance under equity grants, including stock options			39,600,000
Kraft [Member]
Schedule of Equity Method Investments [Line Items]
Minimum annual revenues of Kraft | $							$ 18,000,000,000
Kraft [Member] | Kraft Heinz (previously Heinz Holding) [Member]
Schedule of Equity Method Investments [Line Items]
Ratio of common stock shares to be issued per Kraft common stock share					1
Dividend to be received by Kraft shareholders per share | $ / shares					$ 16.50
Kraft [Member] | Kraft Heinz (previously Heinz Holding) [Member] | Common Stock [Member]
Schedule of Equity Method Investments [Line Items]
Number of new shares issued to former Kraft shareholders	593,000,000

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Receivables (Tables)

9 Months Ended

Sep. 30, 2015

Insurance and Other [Member]

Schedule of receivables

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

	September 30, 2015			December 31, 2014
Insurance premiums receivable		$	9,354		$	7,914
Reinsurance recoverable on unpaid losses			3,373			3,116
Trade and other receivables			12,085			11,133
Allowances for uncollectible accounts			(328)			(311	)
		$	24,484		$	21,852

Finance and Financial Products [Member]

Schedule of receivables

Loans and finance receivables of finance and financial products businesses are summarized as follows (in millions).

	September 30, 2015			December 31, 2014
Loans and finance receivables before allowances and discounts		$	13,123		$	13,150
Allowances for uncollectible loans			(195)			(303	)
Unamortized acquisition discounts			(242)			(281	)
		$	12,686		$	12,566

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Receivables - Narrative (Detail) - Loans and finance receivables [Member] - Finance and Financial Products [Member] - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provisions for loan losses	$ 119	$ 143
Loan charge-offs, net of recoveries	136	$ 157
Allowances in uncollectible loans and related installment loan receivables reclassified to other assets	$ 93
Percent of loan balances evaluated collectively for impairment	98.00%
Percent of loan balances that are performing	99.00%
Percent of loan balances that are current as to payment status	95.00%

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Notes payable and other borrowings

9 Months Ended

Sep. 30, 2015

Debt Disclosure [Abstract]

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 September 30, 2015.

	Weighted Average Interest Rate	September 30, 2015		December 31, 2014
Insurance and other:
Issued by Berkshire due 2015-2047	2.2%		$  9,903		$      8,354
Short-term subsidiary borrowings	1.8%		1,909		839
Other subsidiary borrowings due 2015-2044	6.0%		2,744		2,701
			$14,556		$    11,894

In March 2015, Berkshire issued €3.0 billion in senior unsecured notes consisting of €750 million of 0.75% senior notes due in 2023, €1.25 billion of 1.125% senior notes due in 2027 and €1.0 billion of 1.625% senior notes due in 2035. In February 2015, $1.7 billion of Berkshire senior notes matured.

	Weighted Average Interest Rate	September 30, 2015		December 31, 2014
Railroad, utilities and energy:
Issued by Berkshire Hathaway Energy Company (“BHE”) and its subsidiaries:
BHE senior unsecured debt due 2017-2045	5.1%		$  7,860		$    7,860
Subsidiary and other debt due 2015-2064	4.9%		28,130		28,439
Issued by BNSF due 2015-2097	4.9%		21,882		19,280
			$57,872		$  55,579

BHE subsidiary debt represents amounts issued pursuant to separate financing agreements. Substantially all of the assets of certain BHE 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. BNSF’s borrowings are primarily senior unsecured debentures. In the first nine months of 2015, BNSF issued $2.5 billion of senior unsecured debentures consisting of $850 million of debentures due in 2025 and $1.65 billion of debentures due in 2045. These senior unsecured debentures have interest rates ranging from 3.0% to 4.7%. In the second quarter of 2015, BNSF issued $500 million of amortizing debt with a final maturity date of 2028, which is secured with locomotives. As of September 30, 2015, BNSF and BHE and their subsidiaries were in compliance with all applicable debt covenants. Berkshire does not guarantee any debt, borrowings or lines of credit of BNSF, BHE or their subsidiaries.

	Weighted Average   Interest Rate		September 30,  2015			December 31, 2014
Finance and financial products:
Issued by Berkshire Hathaway Finance Corporation (“BHFC”) due 2015-2043		2.7%		$	11,178	$	11,178
Issued by other subsidiaries due 2015-2036		5.3%			1,305		1,558
				$	12,483	$	12,736

In January 2015, BHFC issued $1.0 billion of new senior notes consisting of $400 million floating rate senior notes that mature in 2017 and $600 million floating rate senior notes that mature in 2018, which replaced $1.0 billion of senior notes that matured. The borrowings of BHFC, a wholly owned finance subsidiary of Berkshire, are fully and unconditionally guaranteed by Berkshire.

As of September 30, 2015, our subsidiaries had unused lines of credit and commercial paper capacity aggregating approximately $9.2 billion to support short-term borrowing programs and provide additional liquidity. Such unused lines of credit included about $5.4 billion related to BHE and its subsidiaries. In addition to BHFC’s borrowings, Berkshire has guaranteed other subsidiary borrowings, aggregating approximately $3.3 billion at September 30, 2015. 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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Inventories (Tables)

9 Months Ended

Sep. 30, 2015

Inventory Disclosure [Abstract]

Schedule of inventories

Inventories are comprised of the following (in millions).

	September 30,   2015		December 31,   2014
Raw materials		$  1,838		$  1,881
Work in process and other		856		850
Finished manufactured goods		3,503		3,333
Goods acquired for resale		5,798		4,172
		$11,995		$10,236

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Common stock

9 Months Ended

Sep. 30, 2015

Equity [Abstract]

Common stock

Note 17. Common stock

Changes in Berkshire’s issued, treasury and outstanding common stock during the first nine months of 2015 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, 2014		838,019		(11,680)		826,339		1,226,265,250		(1,409,762)		1,224,855,488
Conversions of Class A common stock to Class B common stock and exercises of replacement stock options issued in a business acquisition		(15,058)		—		(15,058)		23,255,846		—		23,255,846
Balance at September 30, 2015		822,961		(11,680)		811,281		1,249,521,096		(1,409,762)		1,248,111,334

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 1,643,355 shares outstanding as of September 30, 2015 and 1,642,909 shares outstanding as of December 31, 2014. In addition to our common stock, 1,000,000 shares of preferred stock are authorized, but none are issued and outstanding.

Berkshire’s Board of Directors (“Berkshire’s Board”) has approved a common stock repurchase program under which Berkshire may repurchase its Class A and Class B shares at prices no higher than a 20% premium over the book value of the shares. 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 and cash equivalent holdings below $20 billion. 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 under the program in the first nine months of 2015.

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Property, plant and equipment and assets held for lease - Narrative (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Finance and Financial Products [Member]
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 447	$ 447
Insurance and Other [Member]
Property, Plant and Equipment [Line Items]
Depreciation expense	1,240	1,202
Railroad, Utilities and Energy [Member]
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 3,276	$ 2,932

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Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net earnings	$ 18,867	$ 15,952
Adjustments to reconcile net earnings to operating cash flows:
Investment gains/losses	(8,725)	(3,121)
Depreciation and amortization	5,801	5,436
Other	620	(369)
Changes in operating assets and liabilities:
Losses and loss adjustment expenses	1,195	6,731
Deferred charges reinsurance assumed	369	(3,162)
Unearned premiums	2,311	1,982
Receivables and originated loans	(3,021)	(3,061)
Derivative contract assets and liabilities	(296)	(663)
Income taxes	5,954	2,700
Other	1,080	1,732
Net cash flows from operating activities	24,155	24,157
Cash flows from investing activities:
Purchases of fixed maturity securities	(5,365)	(5,775)
Purchases of equity securities	(8,809)	(4,389)
Investments in The Kraft Heinz Company and other investments	(5,258)
Sales of fixed maturity securities	791	916
Redemptions and maturities of fixed maturity securities	4,421	4,722
Sales and redemptions of equity securities	5,755	3,803
Purchases of loans and finance receivables	(144)	(162)
Collections of loans and finance receivables	345	770
Acquisitions of businesses, net of cash acquired	(4,802)	(1,069)
Purchases of property, plant and equipment	(11,803)	(10,172)
Other	21	390
Net cash flows from investing activities	(24,848)	(10,966)
Cash flows from financing activities:
Change in short term borrowings, net	(508)	222
Acquisitions of noncontrolling interests	(71)	(1,288)
Other financing activities	(181)	38
Net cash flows from financing activities	3,798	1,176
Effects of foreign currency exchange rate changes	(114)	(173)
Increase in cash and cash equivalents	2,991	14,194
Cash and cash equivalents:
Cash and cash equivalents at beginning of year	63,269	48,186
Cash and cash equivalents at end of third quarter	66,260	62,380
Insurance and Other [Member]
Adjustments to reconcile net earnings to operating cash flows:
Investment gains/losses	(8,571)	(3,049)
Cash flows from financing activities:
Proceeds from borrowings	3,271	826
Repayments of borrowings	(1,875)	(809)
Cash and cash equivalents:
Cash and cash equivalents at beginning of year	57,974	42,433
Cash and cash equivalents at end of third quarter	56,166	55,834
Railroad, Utilities and Energy [Member]
Cash flows from financing activities:
Proceeds from borrowings	4,468	4,272
Repayments of borrowings	(1,050)	(1,745)
Cash and cash equivalents:
Cash and cash equivalents at beginning of year	3,001	3,400
Cash and cash equivalents at end of third quarter	4,691	3,951
Finance and Financial Products [Member]
Adjustments to reconcile net earnings to operating cash flows:
Investment gains/losses	(154)	(72)
Cash flows from financing activities:
Proceeds from borrowings	998	1,148
Repayments of borrowings	(1,254)	(1,488)
Cash and cash equivalents:
Cash and cash equivalents at beginning of year	2,294	2,353
Cash and cash equivalents at end of third quarter	$ 5,403	$ 2,595

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Consolidated Statements of Earnings - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues:
Investment gains/losses		$ 8,266	$ (376)	$ 8,725	$ 3,121
Total revenues		58,989	51,199	159,001	146,414
Costs and expenses:
Total costs and expenses		44,917	44,449	131,436	124,150
Earnings before income taxes		14,072	6,750	27,565	22,264
Income tax expense		4,545	2,029	8,698	6,312
Net earnings		9,527	4,721	18,867	15,952
Less: Earnings attributable to noncontrolling interests		99	104	262	235
Net earnings attributable to Berkshire Hathaway shareholders		$ 9,428	$ 4,617	$ 18,605	$ 15,717
Average common shares outstanding	[1]	1,643,316	1,642,558	1,643,118	1,643,657
Class A [Member]
Net earnings per share attributable to Berkshire Hathaway shareholders:
Net earnings per share attributable to Berkshire Hathaway shareholders	[1]	$ 5,737	$ 2,811	$ 11,323	$ 9,562
Insurance and Other [Member]
Revenues:
Insurance premiums earned		$ 10,514	$ 12,717	$ 30,454	$ 31,456
Sales and service revenues		27,436	25,078	80,169	72,252
Interest, dividend and other investment income		1,132	1,171	3,758	3,909
Investment gains/losses		8,339	(376)	8,571	3,049
Total revenues		47,421	38,590	122,952	110,666
Costs and expenses:
Insurance losses and loss adjustment expenses		6,831	8,791	19,524	19,923
Life, annuity and health insurance benefits		1,165	1,355	4,083	3,844
Insurance underwriting expenses		1,875	1,596	5,505	5,361
Cost of sales and services		22,297	20,410	65,145	58,610
Selling, general and administrative expenses		3,721	2,991	10,177	8,845
Interest expense		88	109	449	323
Total costs and expenses		35,977	35,252	104,883	96,906
Railroad, Utilities and Energy [Member]
Revenues:
Total revenues		10,697	10,697	30,454	30,296
Costs and expenses:
Cost of sales and operating expenses		7,018	7,383	20,985	21,957
Interest expense		672	597	1,957	1,753
Total costs and expenses		7,690	7,980	22,942	23,710
Finance and Financial Products [Member]
Revenues:
Sales and service revenues		1,379	1,322	3,984	3,732
Interest, dividend and other investment income		329	332	1,077	999
Investment gains/losses		(73)		154	72
Derivative gains/losses		(764)	258	380	649
Total revenues		871	1,912	5,595	5,452
Costs and expenses:
Cost of sales and services		736	713	2,134	2,043
Selling, general and administrative expenses		409	393	1,176	1,144
Interest expense		105	111	301	347
Total costs and expenses		$ 1,250	$ 1,217	$ 3,611	$ 3,534

[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

9 Months Ended

Sep. 30, 2015

Inventory Disclosure [Abstract]

Inventories

Note 10. Inventories

Inventories are comprised of the following (in millions).

	September 30,   2015		December 31,   2014
Raw materials		$  1,838		$  1,881
Work in process and other		856		850
Finished manufactured goods		3,503		3,333
Goods acquired for resale		5,798		4,172
		$11,995		$10,236

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2015	Oct. 30, 2015
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q3
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
Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		811,129
Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		1,248,359,021

XML

Property, plant and equipment and assets held for lease

9 Months Ended

Sep. 30, 2015

Property, Plant and Equipment [Abstract]

Property, plant and equipment and assets held for lease

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

Property, plant and equipment of our insurance and other businesses is summarized below (in millions).

	Range of   estimated useful life	September 30,  2015			December 31,  2014
Land	—		$   1,614			$   1,171
Buildings and improvements	2 – 40 years		7,250			6,600
Machinery and equipment	3 – 25 years		16,673			16,413
Furniture, fixtures and other	2 – 18 years		3,812			3,136
			29,349			27,320
Accumulated depreciation			(13,884	)		(13,167	)
			$  15,465			$  14,153

Depreciation expense of insurance and other businesses for the first nine months of 2015 and 2014 was $1,240 million and $1,202 million, respectively.

Property, plant and equipment of our railroad and our utilities and energy businesses is summarized below (in millions).

	Range of   estimated useful life	September 30,   2015		December 31,   2014
Railroad:
Land	—		$      6,031		$      5,983
Track structure and other roadway	7 – 100 years		44,902		42,588
Locomotives, freight cars and other equipment	6 – 40 years		10,866		9,493
Construction in progress	—		1,257		1,292
Utilities and energy:
Utility generation, distribution and transmission system	5 – 80 years		67,044		64,645
Interstate pipeline assets	3 – 80 years		6,761		6,660
Independent power plants and other assets	3 – 30 years		5,574		5,035
Construction in progress	—		4,160		5,194
			146,595		140,890
Accumulated depreciation			(28,018)		(25,836)
			$  118,577		$  115,054

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 nine months of 2015 and 2014 was $3,276 million and $2,932 million, respectively.

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

	Range of estimated useful life	September 30,    2015			December 31,   2014
Assets held for lease	5 – 30 years		$   11,222			$    9,810
Land	—		221			227
Buildings, machinery and other	3 – 50 years		1,170			1,179
			12,613			11,216
Accumulated depreciation			(3,322	)		(3,179	)
			$     9,291			$    8,037

Assets held for lease includes railcars, intermodal tank containers, cranes, over-the-road trailers, storage units and furniture. Depreciation expense of the finance and financial products businesses for the first nine months of 2015 and 2014 was $447 million in each period.

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Fair value measurements - Other information (Detail) - Significant Unobservable Inputs (Level 3) [Member] $ in Millions	9 Months Ended
	Sep. 30, 2015 USD ($)
Other Investments [Member] | Preferred Stock [Member] | Discounted Cash Flow Method [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value, unobservable input, expected duration	7 years
Fair value, unobservable input, discount for transferability restrictions and subordination	1.34%
Fair value of asset	$ 14,526
Other Investments [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	$ 5,747
Net Derivative Contract Liabilities [Member] | Equity Index Put Options [Member] | Pricing Model, Option [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value, unobservable input, volatility	22.00%
Fair value of liability	$ 4,188
Net Derivative Contract Liabilities [Member] | Credit Default [Member] | Discounted Cash Flow Method [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value, unobservable input, credit spreads	0.31%
Fair value of liability	$ 242

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Consolidated Statements of Earnings (Parenthetical)	9 Months Ended
	Sep. 30, 2015
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

9 Months Ended

Sep. 30, 2015

Investments, Debt and Equity Securities [Abstract]

Investments in equity securities

Note 5. Investments in equity securities

Investments in equity securities as of September 30, 2015 and December 31, 2014 are summarized based on the primary industry of the investee in the table below (in millions).

	Cost Basis			Unrealized Gains			Unrealized Losses				Fair Value
September 30, 2015 *
Banks, insurance and finance		$	21,587		$	27,358		$	(86	)		$	48,859
Consumer products			6,893			16,620			(5	)			23,508
Commercial, industrial and other			34,567			6,243			(2,889	)			37,921
		$	63,047		$	50,221		$	(2,980	)		$	110,288

  * Approximately 58% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company – $11.2 billion; Wells Fargo & Company – $25.2 billion; International Business Machines Corporation (“IBM”) – $11.7 billion; and The Coca-Cola Company – $16.0 billion).

	Cost Basis			Unrealized Gains			Unrealized Losses				Fair Value
December 31, 2014 *
Banks, insurance and finance		$	22,495		$	33,170		$	—			$	55,665
Consumer products			6,951			18,389			(1	)			25,339
Commercial, industrial and other			28,924			8,578			(1,036	)			36,466
		$	58,370		$	60,137		$	(1,037	)		$	117,470

  * Approximately 59% of the aggregate fair value was concentrated in the equity securities of four companies (American Express Company – $14.1 billion; Wells Fargo & Company – $26.5 billion; International Business Machines Corporation (“IBM”) – $12.3 billion; and The Coca-Cola Company – $16.9 billion).

As of September 30, 2015 and December 31, 2014, we concluded that there were no unrealized losses that were other than 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 September 30, 2015 and December 31, 2014, unrealized losses on equity securities in a continuous unrealized loss position for more than twelve consecutive months were $204 million and $65 million, respectively. Unrealized losses at September 30, 2015 included approximately $2.0 billion related to our investment in IBM common stock, which represented 15% of our cost. IBM continues to be profitable and generate significant cash flows. We currently have no intention of disposing of our investment in IBM common stock. We expect that the fair value of our investment in IBM common stock will recover and ultimately exceed our cost.

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

	September 30, 2015			December 31, 2014
Insurance and other		$	106,104		$	115,529
Railroad, utilities and energy *			1,185			881
Finance and financial products			2,999			1,060
		$	110,288		$	117,470

  * Included in other assets.

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Investments in fixed maturity securities

9 Months Ended

Sep. 30, 2015

Investments, Debt and Equity Securities [Abstract]

Investments in fixed maturity securities

Note 4. Investments in fixed maturity securities

Investments in securities with fixed maturities as of September 30, 2015 and December 31, 2014 are summarized by type below (in millions).

	Amortized Cost			Unrealized Gains			Unrealized Losses				Fair Value
September 30, 2015
U.S. Treasury, U.S. government corporations and agencies		$	3,796		$	24		$	(1	)		$	3,819
States, municipalities and political subdivisions			1,788			82			(2	)			1,868
Foreign governments			11,415			306			(77	)			11,644
Corporate bonds			7,359			778			(21	)			8,116
Mortgage-backed securities			1,526			191			(4	)			1,713
		$	25,884		$	1,381		$	(105	)		$	27,160
December 31, 2014
U.S. Treasury, U.S. government corporations and agencies		$	2,921		$	14		$	(5	)		$	2,930
States, municipalities and political subdivisions			1,820			93			(1	)			1,912
Foreign governments			12,023			373			(126	)			12,270
Corporate bonds			7,704			1,072			(5	)			8,771
Mortgage-backed securities			1,555			202			(4	)			1,753
		$	26,023		$	1,754		$	(141	)		$	27,636

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

	September 30, 2015			December 31, 2014
Insurance and other		$	27,119		$	27,397
Finance and financial products			41			239
		$	27,160		$	27,636

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 September 30, 2015, approximately 94% of foreign government holdings were rated AA or higher by at least one of the major rating agencies. Approximately 75% of foreign government holdings were issued or guaranteed by the United Kingdom, Germany, Australia, Canada or The Netherlands. Unrealized losses on all fixed maturity investments in a continuous unrealized loss position for more than twelve consecutive months were $10 million as of September 30, 2015 and $15 million as of December 31, 2014.

The amortized cost and estimated fair value of securities with fixed maturities at September 30, 2015 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		$8,103		$11,635		$1,897		$2,723		$1,526		$25,884
Fair value		8,112		12,134		2,024		3,177		1,713		27,160

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Fair value measurements

9 Months Ended

Sep. 30, 2015

Fair Value Disclosures [Abstract]

Fair value measurements

Note 16. Fair value measurements

Our financial assets and liabilities are summarized below as of September 30, 2015 and December 31, 2014 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)
September 30, 2015
Investments in fixed maturity securities:
U.S. Treasury, U.S. government corporations and agencies		$	3,819		$	3,819		$	2,542		$	1,277		$	—
States, municipalities and political subdivisions			1,868			1,868			—			1,868			—
Foreign governments			11,644			11,644			6,982			4,662			—
Corporate bonds			8,116			8,116			—			8,005			111
Mortgage-backed securities			1,713			1,713			—			1,713			—
Investments in equity securities			110,288			110,288			110,250			37			1
Investment in Kraft Heinz common stock			15,816			22,970			22,970			—			—
Investment in Kraft Heinz Preferred Stock			7,710			8,568			—			—			8,568
Other investments			20,576			20,576			303			—			20,273
Loans and finance receivables			12,686			13,067			—			16			13,051
Derivative contract assets (1)			109			109			—			10			99
Derivative contract liabilities:
Railroad, utilities and energy (1)			257			257			12			196			49
Finance and financial products:
Equity index put options			4,188			4,188			—			—			4,188
Credit default			242			242			—			—			242
Notes payable and other borrowings:
Insurance and other			14,556			14,716			—			14,716			—
Railroad, utilities and energy			57,872			63,044			—			63,044			—
Finance and financial products			12,483			12,918			—			12,433			485
December 31, 2014
Investments in fixed maturity securities:
U.S. Treasury, U.S. government corporations and agencies		$	2,930		$	2,930		$	2,264		$	666		$	—
States, municipalities and political subdivisions			1,912			1,912			—			1,912			—
Foreign governments			12,270			12,270			7,981			4,289			—
Corporate bonds			8,771			8,771			—			8,763			8
Mortgage-backed securities			1,753			1,753			—			1,753			—
Investments in equity securities			117,470			117,470			117,424			45			1
Investment in Kraft Heinz Preferred Stock			7,710			8,416			—			—			8,416
Other investments			22,324			22,324			329			—			21,995
Loans and finance receivables			12,566			12,891			—			33			12,858
Derivative contract assets (1)			108			108			1			13			94
Derivative contract liabilities:
Railroad, utilities and energy (1)			230			230			18			169			43
Finance and financial products:
Equity index put options			4,560			4,560			—			—			4,560
Credit default			250			250			—			—			250
Notes payable and other borrowings:
Insurance and other			11,894			12,484			—			12,484			—
Railroad, utilities and energy			55,579			62,802			—			62,802			—
Finance and financial products			12,736			13,417			—			12,846			571

⁽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 it 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 nine months ending September 30, 2015 and 2014 follow (in millions).

	Investments  in fixed maturity securities				Investments in equity securities and other  investments				Net  derivative  contract liabilities
Nine months ending September 30, 2015
Balance at December 31, 2014		$	8			$	21,996			$	(4,759	)
Gains (losses) included in:
Earnings			—				—				467
Other comprehensive income			—				(1,722	)			(5	)
Regulatory assets and liabilities			—				—				(21	)
Acquisitions, dispositions and settlements			103				—				(65	)
Transfers into/out of Level 3			—				—				3
Balance at September 30, 2015		$	111			$	20,274			$	(4,380	)
Nine months ending September 30, 2014
Balance at December 31, 2013		$	372			$	17,958			$	(5,255	)
Gains (losses) included in:
Earnings			—				—				644
Other comprehensive income			13				1,228				4
Regulatory assets and liabilities			—				—				(3	)
Dispositions and settlements			(1	)			—				(1	)
Transfers into/out of Level 3			(375	)			(6	)			(35	)
Balance at September 30, 2014		$	9			$	19,180			$	(4,646	)

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 fair values of derivative contracts and settlement transactions. Substantially all of the 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 our Consolidated Statements of Comprehensive Income.

Quantitative information as of September 30, 2015, 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	$	14,526	Discounted cash flow	Expected duration	7 years
				Discount for transferability  restrictions and subordination	134 basis points
Common stock warrants		5,747	Warrant pricing model	Discount for transferability  and hedging restrictions	8%
Net derivative liabilities:
Equity index put options		4,188	Option pricing model	Volatility	22%
Credit default		242	Discounted cash flow	Credit spreads	31 basis points

Other investments consist of preferred stocks and common stock warrants that we acquired in a few relatively large private placement transactions. These investments are subject to contractual restrictions on transferability and may contain 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. 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 and we have applied discounts with respect to such 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 illiquid and contain contract terms that are not standard in derivatives markets. For example, we are not required to post collateral under most of our contracts and many contracts have relatively long durations. For these and other reasons, we classified these contracts as Level 3. We believe that our valuation methods represent the methods that 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 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 and, given the lack of observable transactions and prices, acceptable values may be subject to wide ranges. Expected volatility inputs represent our expectations, which consider the remaining duration of each contract and assume 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

9 Months Ended

Sep. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and other intangible assets

Note 12. Goodwill and other intangible assets

The change in the carrying value of goodwill for the first nine months of 2015 and the year ended December 31, 2014 is summarized as follows (in millions).

	September 30,     2015		December 31,     2014
Balance at beginning of year		$  60,714		$57,011
Acquisitions of businesses		2,388		4,006
Other, including foreign currency translation		(410)		(303)
Balance at end of period		$  62,692		$60,714

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

	September 30, 2015				December 31, 2014
	Gross carrying    amount		Accumulated  amortization		Gross carrying  amount		Accumulated  amortization
Insurance and other		$14,783		$5,243		$13,714		$4,476
Railroad, utilities and energy		885		225		2,254		1,551
		$15,668		$5,468		$15,968		$6,027
Trademarks and trade names		$  3,054		$   742		$  3,117		$   599
Patents and technology		4,225		1,992		5,425		3,133
Customer relationships		5,510		2,041		5,603		1,768
Other		2,879		693		1,823		527
		$15,668		$5,468		$15,968		$  6,027

In the first nine months of 2015 and 2014, amortization expense was $837 million and $854 million, respectively. Intangible assets with indefinite lives as of September 30, 2015 and December 31, 2014 were $3,140 million and $2,586 million, respectively.

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Accumulated other comprehensive income (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 42,732	$ 44,025
Other comprehensive income, net before reclassifications	(9,511)	2,070
Reclassifications from accumulated other comprehensive income	(1,018)	(1,909)
Ending Balance	32,203	44,186
Unrealized appreciation of investments, net [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	45,636	44,042
Other comprehensive income, net before reclassifications	(7,958)	2,942
Reclassifications from accumulated other comprehensive income	(1,158)	(1,971)
Ending Balance	36,520	45,013
Foreign currency translation [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(1,957)	(146)
Other comprehensive income, net before reclassifications	(1,602)	(852)
Reclassifications from accumulated other comprehensive income	128	47
Ending Balance	(3,431)	(951)
Prior service and actuarial gains/losses of defined benefit pension plans [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(1,039)	46
Other comprehensive income, net before reclassifications	162	(15)
Reclassifications from accumulated other comprehensive income	1	39
Ending Balance	(876)	70
Other AOCI transactions [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	92	83
Other comprehensive income, net before reclassifications	(113)	(5)
Reclassifications from accumulated other comprehensive income	11	(24)
Ending Balance	$ (10)	$ 54

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Investment gains/losses

9 Months Ended

Sep. 30, 2015

Investments, Debt and Equity Securities [Abstract]

Investment gains/losses

Note 8. Investment gains/losses

Investment gains/losses, including other-than-temporary impairment (“OTTI”) losses are summarized below (in millions).

	Third Quarter							First Nine Months
	2015			2014				2015			2014
Fixed maturity securities —
Gross gains		$	6		$	4			$	88		$	233
Gross losses			(44)			(25	)			(128)			(73)
Equity securities —
Gross gains			8,407			354				8,855			3,749
Gross losses			(75)			(38	)			(95)			(41)
OTTI losses			(26)			(678	)			(26)			(697)
Other			(2)			7				31			(50)
		$	8,266		$	(376	)		$	8,725		$	3,121

Investment gains in the third quarter and first nine months of 2015 included a non-cash holding gain of approximately $6.8 billion in connection with our investment in Kraft Heinz common stock (see Note 7). Gains from equity securities during the first nine months of 2014 included non-cash holding gains of approximately $2.1 billion from the exchange of Phillips 66 (“PSX”) common stock in connection with the acquisition of Phillips Specialty Products Inc. (subsequently renamed Lubrizol Specialty Products Inc. (“LSPI”)) and the exchange of Graham Holding Company (“GHC”) common stock for WPLG, Inc. (“WPLG”). The PSX/LSPI exchange was completed on February 25, 2014 and the GHC/WPLG exchange was completed on June 30, 2014. These holding gains represented the excess of the respective fair value of the net assets of LSPI and WPLG received over the respective cost basis of the PSX and GHC shares exchanged. In 2014, we recorded an OTTI charge of $678 million related to our investment in equity securities of Tesco PLC.

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Investments in The Kraft Heinz Company - Summary of Investments (Detail) - Kraft Heinz (previously Heinz Holding) [Member] - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
Common stock	$ 15,816	$ 3,950
Preferred Stock	7,710	7,710
Investments in The Kraft Heinz Company	$ 23,526	$ 11,660

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Other investments

9 Months Ended

Sep. 30, 2015

Investments, All Other Investments [Abstract]

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”), warrants to purchase common stock of BAC and our investments in Restaurant Brands International, Inc. (“RBI”). Other investments are classified as available-for-sale and carried at fair value and are shown in our Consolidated Balance Sheets as follows (in millions).

	Cost				Fair Value
	September 30, 2015		December 31, 2014		September 30, 2015		December 31, 2014
Insurance and other		$9,970		$9,970		$15,011		$16,346
Finance and financial products		3,052		3,052		5,565		5,978
		$13,022		$13,022		$20,576		$22,324

We own $2.1 billion liquidation amount of Wrigley preferred stock that was acquired in conjunction with the Mars Incorporated (“Mars”) acquisition of Wrigley. The Wrigley preferred stock is entitled to dividends at 5% per annum and is subject to certain put and call arrangements during 2016 for up to 50% of our original investment. Beginning in 2021, our then outstanding investment will be subject to annual put and call arrangements. The redemption amounts under the put and call arrangements will be based upon the earnings of Wrigley.

We own 3,000,000 shares of Series A Cumulative Convertible Perpetual Preferred Stock of Dow (“Dow Preferred”) with a liquidation value of $1,000 per share. 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). Dow currently has the option to cause some or all of the Dow Preferred to be converted into Dow common stock at the then applicable conversion rate, if the New York Stock Exchange closing price of its common stock exceeds $53.72 per share for any 20 trading days within a period of 30 consecutive trading days ending on the day before Dow exercises its option. The Dow Preferred is entitled to dividends at a rate of 8.5% per annum.

We own 50,000 shares of 6% Non-Cumulative Perpetual Preferred Stock of BAC (“BAC Preferred”) with a liquidation value of $100,000 per share and warrants to purchase 700,000,000 shares of common stock of BAC (“BAC Warrants”). The BAC Preferred may be redeemed at the option of BAC beginning on May 7, 2019 at a redemption price of $105,000 per share (or $5.25 billion in aggregate). The BAC Warrants expire in 2021 and are exercisable for an additional aggregate cost of $5 billion ($7.142857/share).

On December 12, 2014, we acquired Class A 9% Cumulative Compounding Perpetual Preferred Shares of RBI (“RBI Preferred”) having a stated value of $3 billion and common stock of RBI for an aggregate cost of $3 billion. RBI, domiciled in Canada, is the ultimate parent company of Burger King and Tim Hortons. As of the acquisition date, our combined investment in RBI possessed approximately 14.4% of the voting interests of RBI. The RBI Preferred is entitled to dividends on a cumulative basis of 9% per annum plus an additional amount that is intended to produce an after-tax yield to Berkshire as if the dividends were paid by a U.S.-based company.

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Investments in The Kraft Heinz Company (formerly H.J. Heinz Holding Corporation)

9 Months Ended

Sep. 30, 2015

Equity Method Investments and Joint Ventures [Abstract]

Investments in The Kraft Heinz Company (formerly H.J. Heinz Holding Corporation)

Note 7. Investments in The Kraft Heinz Company (formerly 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 Heinz. 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 comprised of 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 initial investments consisted of 425 million shares of Heinz Holding common stock, warrants, which were exercised in June 2015, to acquire approximately 46 million additional shares of common stock at one cent per share, 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 also 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 to its management and directors under equity grants, including stock options.

In March 2015, Heinz Holding and Kraft Foods Group, Inc. (“Kraft”) entered into a merger agreement under which Kraft shareholders were entitled to receive one share of newly issued Heinz Holding common stock for each share of Kraft common stock and a special cash dividend of $16.50 per share. Kraft is one of North America’s largest consumer packaged food and beverage companies, with annual revenues of more than $18 billion. The company’s iconic brands include Kraft, Capri Sun, Jell-O, Kool-Aid, Lunchables, Maxwell House, Oscar Mayer, Philadelphia, Planters and Velveeta.

On July 1, 2015, Berkshire acquired 262.9 million shares of newly issued common stock of Heinz Holding for $5.26 billion and 3G acquired 237.1 million shares of newly issued common stock for $4.74 billion. Immediately thereafter, Heinz Holding executed a reverse stock split at a rate of 0.443332 of a share for each share. Upon completion of these transactions, Berkshire owned approximately 325.4 million shares of Heinz Holding common stock, or 52.5% of the then outstanding shares. The merger transaction closed on July 2, 2015, at which time Heinz Holding was renamed The Kraft Heinz Company (“Kraft Heinz”) and Kraft Heinz issued approximately 593 million new shares of its common stock to the former Kraft shareholders. Following the issuance of these additional shares, Berkshire and 3G owned approximately 51% of the outstanding Kraft Heinz common stock, with Berkshire owning approximately 26.8% and 3G owning 24.2%. Our investments in Kraft Heinz are summarized as follows (in millions).

	Carrying Value
	September 30, 2015			December 31, 2014
Common stock		$	15,816		$	3,950
Preferred Stock			7,710			7,710
		$	23,526		$	11,660

We account for our investment in the common stock of Kraft Heinz on the equity method. We include our proportionate share of 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 the Preferred Stock as an equity investment and it is carried at cost in our Consolidated Balance Sheets. Dividends earned on the Preferred Stock and our share of net earnings or loss attributable to common stockholders are included in interest, dividend and other investment income in our Consolidated Statements of Earnings.

As previously discussed, the issuance of new common stock by Kraft Heinz for Kraft common stock reduced our ownership of Kraft Heinz from approximately 52.5% to 26.8%. Under the equity method of accounting, the issuance of shares by an investee is accounted for by the investor as if the investor had sold a proportionate share of its investment. As a result, we recorded a non-cash pre-tax holding gain of approximately $6.8 billion in the third quarter of 2015, representing the excess of the fair value of Kraft Heinz common stock at the date of the merger over our carrying value associated with the reduction in our ownership of Kraft Heinz.

The Preferred Stock possesses no voting rights except as are required by law or for certain matters. 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. After June 7, 2021, Berkshire can cause Kraft Heinz 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 the Preferred Stock. Kraft Heinz has announced its intention to call the Preferred Stock after June 7, 2016 and prior to June 7, 2017, although it has no obligation to do so.

Summarized consolidated financial information of Kraft Heinz follows (in millions).

	September 27, 2015			December 28, 2014
Assets		$	121,792		$	36,535
Liabilities			54,433			20,850

	Third quarter							First nine months
	2015				2014			2015			2014
Sales		$	6,120			$	2,594		$	11,214		$	8,123
Net earnings (loss)		$	(123	)		$	172		$	(11)		$	494
Preferred Stock dividends			(180	)			(180)			(540)			(540)
Net loss attributable to common shareholders		$	(303	)		$	(8)		$	(551)		$	(46)
Net earnings attributable to Berkshire Hathaway Shareholders *		$	115			$	198		$	315		$	491

  * Includes dividends earned on Preferred Stock and Berkshire’s share of net loss attributable to Kraft Heinz common shareholders, net of applicable income

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Receivables

9 Months Ended

Sep. 30, 2015

Receivables [Abstract]

Receivables

Note 9. Receivables

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

	September 30, 2015			December 31, 2014
Insurance premiums receivable		$	9,354		$	7,914
Reinsurance recoverable on unpaid losses			3,373			3,116
Trade and other receivables			12,085			11,133
Allowances for uncollectible accounts			(328)			(311	)
		$	24,484		$	21,852

Loans and finance receivables of finance and financial products businesses are summarized as follows (in millions).

	September 30, 2015			December 31, 2014
Loans and finance receivables before allowances and discounts		$	13,123		$	13,150
Allowances for uncollectible loans			(195)			(303	)
Unamortized acquisition discounts			(242)			(281	)
		$	12,686		$	12,566

Loans and finance receivables are predominantly installment loans originated or acquired by our manufactured housing business. Provisions for loan losses for the first nine months of 2015 and 2014 were $119 million and $143 million, respectively. Loan charge-offs, net of recoveries, for the first nine months of 2015 and 2014 were $136 million and $157 million, respectively. In 2015, we reclassified $93 million of allowances for uncollectible loans and related installment loan receivables that were in-substance foreclosures or repossessions to other assets. The reclassifications had no impact on earnings or cash flows. At September 30, 2015, approximately 98% of the loan balances were evaluated collectively for impairment. As a part of the evaluation process, credit quality indicators are reviewed and loans are designated as performing or non-performing. At September 30, 2015, approximately 99% of the loan balances were determined to be performing and approximately 95% of the loan balances were current as to payment status.

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Receivables (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Insurance and Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Insurance premiums receivable	$ 9,354	$ 7,914
Reinsurance recoverable on unpaid losses	3,373	3,116
Trade and other receivables	12,085	11,133
Allowances for uncollectible accounts	(328)	(311)
Total receivables of insurance and other businesses	24,484	21,852
Finance and Financial Products [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and finance receivables before allowances and discounts	13,123	13,150
Allowances for uncollectible loans	(195)	(303)
Unamortized acquisition discounts	(242)	(281)
Total loans and finance receivables of finance and financial products businesses	$ 12,686	$ 12,566

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Accumulated other comprehensive income - Reclassified Amounts (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment gains/losses	$ 8,266	$ (376)	$ 8,725	$ 3,121
Reclassifications before income taxes	14,072	6,750	27,565	22,264
Applicable income taxes	4,545	2,029	8,698	6,312
Total amounts reclassified from other comprehensive income into net earnings	9,527	4,721	18,867	15,952
Insurance and Other [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment gains/losses	8,339	$ (376)	8,571	3,049
Finance and Financial Products [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment gains/losses	$ (73)		154	72
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other			20	59
Reclassifications before income taxes			(1,564)	(2,973)
Applicable income taxes			(546)	(1,064)
Total amounts reclassified from other comprehensive income into net earnings			(1,018)	(1,909)
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			(1,498)	(2,960)
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			(86)	(72)
Unrealized appreciation of investments, net [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassifications before income taxes			(1,781)	(3,032)
Applicable income taxes			(623)	(1,061)
Total amounts reclassified from other comprehensive income into net earnings			(1,158)	(1,971)
Unrealized appreciation of investments, net [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			(1,695)	(2,960)
Unrealized appreciation of investments, net [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			(86)	(72)
Foreign currency translation [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other				47
Reclassifications before income taxes			197	47
Applicable income taxes			69
Total amounts reclassified from other comprehensive income into net earnings			128	47
Foreign currency translation [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			197
Prior service and actuarial gains/losses of defined benefit pension plans [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other			2	51
Reclassifications before income taxes			2	51
Applicable income taxes			1	12
Total amounts reclassified from other comprehensive income into net earnings			1	39
Other AOCI transactions [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other			18	(39)
Reclassifications before income taxes			18	(39)
Applicable income taxes			7	(15)
Total amounts reclassified from other comprehensive income into net earnings			$ 11	$ (24)

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Inventories (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Raw materials	$ 1,838	$ 1,881
Work in process and other	856	850
Finished manufactured goods	3,503	3,333
Goods acquired for resale	5,798	4,172
Total inventory	$ 11,995	$ 10,236

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Investment gains/losses - Narrative (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Gain (Loss) on Investments [Line Items]
Investment gains/losses	$ 8,266	$ (376)	$ 8,725	$ 3,121
OTTI losses	26	$ 678	26	697
Common Stock [Member] | Kraft Heinz (previously Heinz Holding) [Member]
Gain (Loss) on Investments [Line Items]
Non-cash pre-tax holding gain	$ 6,800		$ 6,800
Equity Securities [Member] | PSX and GHC [Member] | PSPI and WPLG Inc. [Member]
Gain (Loss) on Investments [Line Items]
Investment gains/losses				2,100
Equity Securities [Member] | Tesco PLC [Member]
Gain (Loss) on Investments [Line Items]
OTTI losses				$ 678

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Investment gains/losses (Tables)

9 Months Ended

Sep. 30, 2015

Investments, Debt and Equity Securities [Abstract]

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

Investment gains/losses, including other-than-temporary impairment (“OTTI”) losses are summarized below (in millions).

	Third Quarter							First Nine Months
	2015			2014				2015			2014
Fixed maturity securities —
Gross gains		$	6		$	4			$	88		$	233
Gross losses			(44)			(25	)			(128)			(73)
Equity securities —
Gross gains			8,407			354				8,855			3,749
Gross losses			(75)			(38	)			(95)			(41)
OTTI losses			(26)			(678	)			(26)			(697)
Other			(2)			7				31			(50)
		$	8,266		$	(376	)		$	8,725		$	3,121

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Investments in fixed maturity securities - Narrative (Detail) - Fixed Maturities [Member] - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Summary of Investment Holdings [Line Items]
Unrealized losses related to securities that have been in an unrealized loss position for more than 12 months	$ 10	$ 15
Foreign governments [Member] | United Kingdom, Germany, Australia, Canada or 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	94.00%

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Supplemental cash flow information

9 Months Ended

Sep. 30, 2015

Supplemental Cash Flow Elements [Abstract]

Supplemental cash flow information

Note 14. Supplemental cash flow information

A summary of supplemental cash flow information for the first nine months of 2015 and 2014 is presented in the following table (in millions).

	First Nine Months
	2015		2014
Cash paid during the period for:
Income taxes		$  2,575		$  3,201
Interest:
Insurance and other businesses		312		321
Railroad, utilities and energy businesses		2,043		1,864
Finance and financial products businesses		274		332
Non-cash investing and financing activities:
Equity securities exchanged in connection with business acquisitions		—		2,478
Liabilities assumed in connection with business acquisitions		2,792		1,459
Treasury stock acquired in connection with business acquisition		—		400

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Contingencies and Commitments

9 Months Ended

Sep. 30, 2015

Commitments and Contingencies Disclosure [Abstract]

Contingencies and Commitments

Note 19. Contingencies and Commitments

We are parties in a variety of legal actions that routinely arise out of the normal course of business, including legal actions seeking 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 currently 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 currently 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.

On August 8, 2015, Berkshire entered into a definitive agreement with Precision Castparts Corp. (“PCC”) to acquire for $235 per share of common stock in cash, all outstanding PCC shares of common stock, other than the shares we already own (about 2.7 million shares or 1.96%), for aggregate consideration of approximately $31.7 billion. A special meeting of PCC shareholders for the purpose of voting on whether or not to approve the agreement has been scheduled for November 19, 2015. The transaction requires approval by a majority of PCC’s outstanding shares. In addition to the approval of PCC shareholders, the closing of the acquisition is subject to clearance under the Hart-Scott-Rodino (“HSR”) Act and competition clearance in certain foreign jurisdictions. Clearance under the HSR Act was obtained on October 5, 2015. It is expected that the remaining competition clearances will be obtained and that the acquisition will be completed no later than the end of the first quarter of 2016.

PCC is a worldwide, diversified manufacturer of complex metal components and products. It serves the aerospace, power, and general industrial markets. PCC is a market leader in manufacturing complex structural investment castings and forged components for aerospace markets, machined airframe components, and highly engineered, critical fasteners for aerospace applications, and in manufacturing airfoil castings for the aerospace and industrial gas turbine markets. PCC also is a leading producer of titanium and nickel superalloy melted and mill products for the aerospace, chemical processing, oil and gas, and pollution control industries, and manufactures extruded seamless pipe, fittings, and forgings for power generation and oil and gas applications.

On November 13, 2014, Berkshire entered into a definitive agreement with The Procter & Gamble Company (“P&G”) whereby it will acquire the Duracell business from P&G. Duracell is a leading manufacturer of high-performance alkaline batteries and is an innovator in renewable power and wireless charging technologies. Pursuant to the agreement, in exchange for a recapitalized Duracell Company, which will include approximately $1.7 billion in cash at closing, P&G will receive shares of P&G common stock currently held by Berkshire subsidiaries which had a fair value at September 30, 2015 of approximately $3.8 billion. The transaction is currently expected to close in the first quarter of 2016.

We own a 50% interest in a joint venture, Berkadia Commercial Mortgage LLC (“Berkadia”), with Leucadia National Corporation (“Leucadia”) owning 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 the 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 us for one-half of any losses incurred under the policy. On September 30, 2015, the aggregate amount of Berkadia commercial paper outstanding was $2.47 billion.

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Investments in fixed maturity securities (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Summary of Investment Holdings [Line Items]
Amortized cost of fixed maturity securities	$ 25,884	$ 26,023
Unrealized gains on fixed maturity securities	1,381	1,754
Unrealized losses on fixed maturity securities	(105)	(141)
Fair value of fixed maturity securities	27,160	27,636
U.S. Treasury, U.S. government corporations and agencies [Member]
Summary of Investment Holdings [Line Items]
Amortized cost of fixed maturity securities	3,796	2,921
Unrealized gains on fixed maturity securities	24	14
Unrealized losses on fixed maturity securities	(1)	(5)
Fair value of fixed maturity securities	3,819	2,930
States, municipalities and political subdivisions [Member]
Summary of Investment Holdings [Line Items]
Amortized cost of fixed maturity securities	1,788	1,820
Unrealized gains on fixed maturity securities	82	93
Unrealized losses on fixed maturity securities	(2)	(1)
Fair value of fixed maturity securities	1,868	1,912
Foreign governments [Member]
Summary of Investment Holdings [Line Items]
Amortized cost of fixed maturity securities	11,415	12,023
Unrealized gains on fixed maturity securities	306	373
Unrealized losses on fixed maturity securities	(77)	(126)
Fair value of fixed maturity securities	11,644	12,270
Corporate bonds [Member]
Summary of Investment Holdings [Line Items]
Amortized cost of fixed maturity securities	7,359	7,704
Unrealized gains on fixed maturity securities	778	1,072
Unrealized losses on fixed maturity securities	(21)	(5)
Fair value of fixed maturity securities	8,116	8,771
Mortgage-backed securities [Member]
Summary of Investment Holdings [Line Items]
Amortized cost of fixed maturity securities	1,526	1,555
Unrealized gains on fixed maturity securities	191	202
Unrealized losses on fixed maturity securities	(4)	(4)
Fair value of fixed maturity securities	$ 1,713	$ 1,753

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Notes payable and other borrowings (Tables)

9 Months Ended

Sep. 30, 2015

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 September 30, 2015.

	Weighted Average Interest Rate	September 30, 2015		December 31, 2014
Insurance and other:
Issued by Berkshire due 2015-2047	2.2%		$  9,903		$      8,354
Short-term subsidiary borrowings	1.8%		1,909		839
Other subsidiary borrowings due 2015-2044	6.0%		2,744		2,701
			$14,556		$    11,894

Railroad, Utilities and Energy [Member]

Schedule of short and long term outstanding debt disclosure

	Weighted Average Interest Rate	September 30, 2015		December 31, 2014
Railroad, utilities and energy:
Issued by Berkshire Hathaway Energy Company (“BHE”) and its subsidiaries:
BHE senior unsecured debt due 2017-2045	5.1%		$  7,860		$    7,860
Subsidiary and other debt due 2015-2064	4.9%		28,130		28,439
Issued by BNSF due 2015-2097	4.9%		21,882		19,280
			$57,872		$  55,579

Finance and Financial Products [Member]

Schedule of short and long term outstanding debt disclosure

	Weighted Average   Interest Rate		September 30,  2015			December 31, 2014
Finance and financial products:
Issued by Berkshire Hathaway Finance Corporation (“BHFC”) due 2015-2043		2.7%		$	11,178	$	11,178
Issued by other subsidiaries due 2015-2036		5.3%			1,305		1,558
				$	12,483	$	12,736

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Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net earnings	$ 9,527	$ 4,721	$ 18,867	$ 15,952
Other comprehensive income:
Net change in unrealized appreciation of investments	(8,623)	(601)	(12,185)	4,629
Applicable income taxes	2,957	174	4,237	(1,662)
Reclassification of investment appreciation in net earnings	(1,586)	417	(1,781)	(3,032)
Applicable income taxes	555	(146)	623	1,061
Foreign currency translation	(716)	(1,226)	(1,499)	(846)
Applicable income taxes	(11)	101	(30)	31
Prior service cost and actuarial gains/losses of defined benefit pension plans	247	39	252	30
Applicable income taxes	(85)	(7)	(87)	(2)
Other, net	(4)	2	(104)	(27)
Other comprehensive income, net	(7,266)	(1,247)	(10,574)	182
Comprehensive income	2,261	3,474	8,293	16,134
Comprehensive income attributable to noncontrolling interests	47	92	217	256
Comprehensive income attributable to Berkshire Hathaway shareholders	$ 2,214	$ 3,382	$ 8,076	$ 15,878

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Significant business acquisitions

9 Months Ended

Sep. 30, 2015

Business Combinations [Abstract]

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. Financial results attributable to business acquisitions are included in our Consolidated Financial Statements beginning on their respective acquisition dates.

In the first quarter of 2015, Berkshire acquired controlling interests in the Van Tuyl Group. The Van Tuyl Group (now named Berkshire Hathaway Automotive) included 81 automotive dealerships located in 10 states as well as two related insurance businesses, two auto auctions and a manufacturer of automotive fluid maintenance products. In addition to selling new and pre-owned automobiles, the Berkshire Hathaway Automotive group offers repair and other services and products, including extended warranty services and other automotive protection plans. Consideration paid for the acquisition was $4.1 billion. On December 1, 2014, Berkshire Hathaway Energy Company acquired AltaLink, L.P. (“AltaLink”) for a cash purchase price of C$3.1 billion (approximately $2.7 billion). AltaLink is a regulated electric transmission-only business, headquartered in Calgary, Alberta. The goodwill related to the AltaLink acquisition is not amortizable for income tax purposes, while substantially all of the goodwill related to Berkshire Hathaway Automotive is expected to be amortizable for income tax purposes.

Preliminary fair values of identified assets acquired and liabilities assumed and residual goodwill at their respective acquisition dates are summarized as follows (in millions).

	Berkshire Hathaway Automotive		AltaLink
Cash and investments		$    1,274		$         15
Inventories		1,209		—
Property, plant and equipment		1,034		5,610
Goodwill		1,719		1,731
Other assets		1,401		287
Assets acquired		$    6,637		$    7,643
Accounts payable, accruals and other liabilities		$    1,396		$    1,064
Notes payable and other borrowings		1,129		3,851
Liabilities assumed		$    2,525		$    4,915
Net assets		$    4,112		$    2,728

The following table sets forth certain unaudited pro forma consolidated earnings data for the first nine months of 2014 as if the acquisitions discussed previously were consummated on the same terms at the beginning of the year preceding their respective acquisition dates (in millions, except the per share amount). Pro forma data for the first nine months of 2015 was not materially different from the amounts reflected in the Consolidated Statement of Earnings.

	First nine months  2014
Revenues		$	153,079
Net earnings attributable to Berkshire Hathaway shareholders			15,838
Net earnings per equivalent Class A common share attributable to Berkshire Hathaway shareholders			9,636

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Other investments - Narrative (Detail) - Available-for-sale Securities [Member] $ / shares in Units, $ in Millions		9 Months Ended
	Dec. 12, 2014 USD ($)	Sep. 30, 2015 USD ($) $ / shares shares
Wm. Wrigley Jr. Company [Member]
Other Investments [Line Items]
Investment in preferred stock, liquidation value | $		$ 2,100
Investment in preferred stock, stated dividend rate		5.00%
Percentage of original preferred stock investment subject to put and call arrangements in 2016		50.00%
Series A Cumulative Convertible Perpetual Preferred Stock [Member] | The Dow Chemical Company [Member]
Other Investments [Line Items]
Investment in preferred stock, stated dividend rate		8.50%
Investment, number of shares owned | shares		3,000,000
Investment in preferred stock, liquidation value per share		$ 1,000
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
Non-Cumulative Perpetual Preferred Stock [Member] | Bank of America Corporation [Member]
Other Investments [Line Items]
Investment in preferred stock, stated dividend rate		6.00%
Investment, number of shares owned | shares		50,000
Investment in preferred stock, liquidation value per share		$ 100,000
Redemption value of Perpetual Preferred Stock, per share		$ 105,000
Redemption value of Perpetual Preferred Stock, aggregate value | $		$ 5,250
Warrants Expiring 2021 [Member] | Bank of America Corporation [Member]
Other Investments [Line Items]
Number of common shares that can be purchased | shares		700,000,000
Aggregate cost to exercise warrants | $		$ 5,000
Exercise price for warrants, per share		$ 7.142857
Class A 9% Cumulative Compounding Perpetual Preferred Stock [Member] | RBI - Parent Company of Burger King and Tim Hortons [Member]
Other Investments [Line Items]
Investment in preferred stock, stated dividend rate		9.00%
Stated value of equity securities acquired | $	$ 3,000
Class A 9% Cumulative Compounding Perpetual Preferred Stock and Common Stock [Member] | RBI - Parent Company of Burger King and Tim Hortons [Member]
Other Investments [Line Items]
Amount paid for an investment | $	$ 3,000
Percentage of voting interests	14.40%

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Common stock (Parenthetical) (Detail)	Sep. 30, 2015 $ / shares shares
Class A [Member]
Class of Stock [Line Items]
Common Stock, par value per share | $ / shares	$ 5
Common Stock, shares authorized	1,650,000
Class B [Member]
Class of Stock [Line Items]
Common Stock, par value per share | $ / shares	$ 0.0033
Common Stock, shares authorized	3,225,000,000

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Goodwill and other intangible assets - Goodwill (Detail) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Balance at beginning of year	$ 60,714	$ 57,011
Acquisitions of businesses	2,388	4,006
Other, including foreign currency translation	(410)	(303)
Balance at end of period	$ 62,692	$ 60,714

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Business segment data

9 Months Ended

Sep. 30, 2015

Segment Reporting [Abstract]

Business segment data

Note 20. Business segment data

Revenues by segment for the third quarter and first nine months of 2015 and 2014 were as follows (in millions).

	Third Quarter						First Nine Months
	2015			2014			2015			2014
Operating Businesses:
Insurance group:
Underwriting:
GEICO	$	5,788		$	5,203		$	16,792		$	15,168
General Re		1,405			1,566			4,397			4,733
Berkshire Hathaway Reinsurance Group		1,892			4,809			5,317			8,414
Berkshire Hathaway Primary Group		1,429			1,139			3,948			3,141
Investment income		1,046			957			3,474			3,409
Total insurance group		11,560			13,674			33,928			34,865
BNSF		5,600			5,881			16,571			17,063
Berkshire Hathaway Energy		5,144			4,853			14,018			13,344
McLane Company		12,264			12,151			36,200			34,327
Manufacturing		9,181			9,534			27,568			27,788
Service and retailing		6,151			3,493			16,966			10,456
Finance and financial products		1,725			1,654			5,078			4,731
		51,625			51,240			150,329			142,574
Reconciliation of segments to consolidated amount:
Investment and derivative gains/losses		7,502			(118	)		9,105			3,770
Eliminations and other		(138	)		77			(433	)		70
	$	58,989		$	51,199		$	159,001		$	146,414

Earnings before income taxes by segment for the third quarter and first nine months of 2015 and 2014 were as follows (in millions).

	Third Quarter						First Nine Months
	2015			2014			2015			2014
Operating Businesses:
Insurance group:
Underwriting:
GEICO	$	258		$	264		$	471		$	1,010
General Re		(2	)		126			58			322
Berkshire Hathaway Reinsurance Group		199			443			247			617
Berkshire Hathaway Primary Group		188			143			566			379
Investment income		1,045			950			3,466			3,394
Total insurance group		1,688			1,926			4,808			5,722
BNSF		1,839			1,654			5,047			4,295
Berkshire Hathaway Energy		1,153			1,051			2,398			2,248
McLane Company		106			120			384			361
Manufacturing		1,259			1,337			3,857			3,774
Service and retailing		378			355			1,260			1,095
Finance and financial products		486			453			1,480			1,247
		6,909			6,896			19,234			18,742
Reconciliation of segments to consolidated amount:
Investment and derivative gains/losses		7,502			(118	)		9,105			3,770
Interest expense, not allocated to segments		(83	)		(79	)		(391	)		(233	)
Eliminations and other		(256	)		51			(383	)		(15	)
	$	14,072		$	6,750		$	27,565		$	22,264

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Derivative contracts - Narrative (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Finance and Financial Products [Member]
Derivative [Line Items]
Liabilities	$ 4,430,000,000	$ 4,810,000,000
Finance and Financial Products [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Collateral posting requirements under contracts with collateral provisions	0	0
Additional collateral posting requirements	1,100,000,000
Liabilities	4,430,000,000	4,810,000,000
Finance and Financial Products [Member] | Not Designated as Hedging Instrument [Member] | Equity Index Put Options [Member]
Derivative [Line Items]
Aggregate intrinsic value of equity index put option contracts	$ 1,400,000,000	1,400,000,000
Weighted average remaining life of derivative contract	5 years 2 months 12 days
Liabilities	$ 4,188,000,000	4,560,000,000
Finance and Financial Products [Member] | Not Designated as Hedging Instrument [Member] | Credit Default Contracts - Municipalities [Member]
Derivative [Line Items]
Weighted average remaining life of derivative contract	16 years
Railroad, Utilities and Energy [Member] | Not Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivative [Line Items]
Assets	$ 109,000,000	108,000,000
Railroad, Utilities and Energy [Member] | Not Designated as Hedging Instrument [Member] | Accounts Payable, Accruals and Other Liabilities [Member]
Derivative [Line Items]
Liabilities	$ 257,000,000	$ 230,000,000
Minimum [Member] | Finance and Financial Products [Member] | Not Designated as Hedging Instrument [Member] | Equity Index Put Options [Member]
Derivative [Line Items]
Derivative maturity month and year	2018-06
Minimum [Member] | Finance and Financial Products [Member] | Not Designated as Hedging Instrument [Member] | Credit Default Contracts - Municipalities [Member]
Derivative [Line Items]
Derivative maturity year	2019
Maximum [Member] | Finance and Financial Products [Member] | Not Designated as Hedging Instrument [Member] | Equity Index Put Options [Member]
Derivative [Line Items]
Derivative maturity month and year	2026-01
Maximum [Member] | Finance and Financial Products [Member] | Not Designated as Hedging Instrument [Member] | Credit Default Contracts - Municipalities [Member]
Derivative [Line Items]
Derivative maturity year	2054

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Goodwill and other intangible assets (Tables)

9 Months Ended

Sep. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Reconciliation of the change in goodwill

The change in the carrying value of goodwill for the first nine months of 2015 and the year ended December 31, 2014 is summarized as follows (in millions).

	September 30,     2015		December 31,     2014
Balance at beginning of year		$  60,714		$57,011
Acquisitions of businesses		2,388		4,006
Other, including foreign currency translation		(410)		(303)
Balance at end of period		$  62,692		$60,714

Schedule of intangible assets

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

	September 30, 2015				December 31, 2014
	Gross carrying    amount		Accumulated  amortization		Gross carrying  amount		Accumulated  amortization
Insurance and other		$14,783		$5,243		$13,714		$4,476
Railroad, utilities and energy		885		225		2,254		1,551
		$15,668		$5,468		$15,968		$6,027
Trademarks and trade names		$  3,054		$   742		$  3,117		$   599
Patents and technology		4,225		1,992		5,425		3,133
Customer relationships		5,510		2,041		5,603		1,768
Other		2,879		693		1,823		527
		$15,668		$5,468		$15,968		$  6,027

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Derivative contracts

9 Months Ended

Sep. 30, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative contracts

Note 13. Derivative contracts

Derivative contracts have been entered into primarily through our finance and financial products and our energy businesses. Derivative contract liabilities associated with our finance and financial products businesses are concentrated in equity index put option and credit default contracts. A summary of those liabilities and related notional values follows (in millions).

	September 30, 2015							December 31, 2014
	Liabilities			Notional Value				Liabilities			Notional Value
Equity index put options		$	4,188		$	28,239	(1)		$	4,560		$	29,469	(1)
Credit default			242			7,792	(2)			250			7,792	(2)
		$	4,430						$	4,810

⁽¹⁾  Represents the aggregate undiscounted amounts payable assuming that the value of each index is zero at each contract’s expiration date. Certain of these contracts are denominated in foreign currencies. Notional amounts are based on the foreign currency exchange rates as of each balance sheet date.

⁽²⁾  Represents the aggregate undiscounted amounts payable under the contracts assuming all underlying issuers default and the residual value of the specified obligations is zero.

The derivative contracts of our finance and financial products businesses are recorded at fair value and the 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 the derivative gains/losses included in our Consolidated Statements of Earnings for the third quarter and first nine months of 2015 and 2014 follows (in millions).

	Third Quarter					First Nine Months
	2015			2014		2015		2014
Equity index put options	$	(802	)	$	223	$	371	$	156
Credit default		38			35		9		492
Other, principally interest rate and foreign currency		—			—		—		1
	$	(764	)	$	258	$	380	$	649

The equity index put option contracts were written between 2004 and 2008. These contracts are European style options written on four major equity indexes and will expire between June 2018 and January 2026. 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 $1.4 billion at September 30, 2015 and at December 31, 2014. However, these contracts may not be unilaterally terminated or fully settled before the expiration dates. Therefore, the ultimate amount of cash basis gains or losses on these contracts will not be determined for several years. The remaining weighted average life of all contracts was approximately 5.2 years at September 30, 2015.

Our remaining credit default contract was written in 2008 and relates to approximately 500 zero-coupon municipal debt issues with maturities ranging from 2019 to 2054. The underlying debt issues had a weighted average maturity of approximately 16 years on September 30, 2015. Pursuant to the contract terms, future loss payments are required in the event of non-payment by the issuer and non-performance by the primary financial guarantee insurers under their contracts with the issuers. Payments under our contract, if any, are not required prior to the maturity dates of the underlying obligations. The premium was received at the inception of this contract and therefore we have no counterparty credit risk.

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 September 30, 2015 and December 31, 2014, 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, 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 $109 million and $108 million as of September 30, 2015 and December 31, 2014, respectively. Derivative contract liabilities are included in accounts payable, accruals and other liabilities of railroad, utilities and energy businesses and were $257 million and $230 million as of September 30, 2015 and December 31, 2014, respectively. Unrealized gains and losses on contracts of our regulated utilities that are probable of recovery or refund 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.