Consolidated Balance Sheets - USD ($) $ in Millions		Sep. 30, 2019		Dec. 31, 2018
ASSETS
Investments in fixed maturity securities		$ 19,172		$ 19,898
Investments in equity securities		220,051	[1]	172,757	[2]
Loans and finance receivables		17,135		16,280
Inventories		19,951		19,069
Equipment held for lease		14,934		14,298
Goodwill		81,228		81,025
Deferred charges under retroactive reinsurance contracts		13,359		14,104
Total assets		788,482		707,794
LIABILITIES
Unpaid losses and loss adjustment expenses		71,997		68,458
Unpaid losses and loss adjustment expenses under retroactive reinsurance contracts		41,364		41,834
Income taxes, principally deferred		60,389		51,375
Total liabilities		386,924		355,294
Shareholders’ equity:
Common stock		8		8
Capital in excess of par value		35,612		35,707
Accumulated other comprehensive income		(5,408)		(5,015)
Retained earnings		373,334		321,112
Treasury stock, at cost		(5,937)		(3,109)
Berkshire Hathaway shareholders’ equity		397,609		348,703
Noncontrolling interests		3,949		3,797
Total shareholders’ equity		401,558		352,500
Total liabilities and shareholders' equity		788,482		707,794
Insurance and Other [Member]
ASSETS
Cash and cash equivalents	[3]	71,064		27,749
Short-term investments in U.S. Treasury Bills		53,378		81,506
Investments in fixed maturity securities		19,172		19,898
Investments in equity securities		220,051		172,757
Equity method investments		17,535		17,325
Loans and finance receivables		17,135		16,280
Other receivables		34,511		31,564
Inventories		19,951		19,069
Property, plant and equipment		21,230		20,628
Equipment held for lease		14,934		14,298
Goodwill		56,478		56,323
Other intangible assets		30,788		31,499
Deferred charges under retroactive reinsurance contracts		13,359		14,104
Other		13,430		9,307
Total assets		603,016		532,307
LIABILITIES
Unpaid losses and loss adjustment expenses		71,997		68,458
Unpaid losses and loss adjustment expenses under retroactive reinsurance contracts		41,364		41,834
Unearned premiums		20,764		18,093
Life, annuity and health insurance benefits		19,422		18,632
Other policyholder liabilities		7,686		7,675
Accounts payable, accruals and other liabilities		25,880		23,696
Payable for purchases of U.S. Treasury Bills		8,123		2,080
Derivative contract liabilities		1,236		2,452
Aircraft repurchase liabilities and unearned lease revenues		5,106		4,593
Notes payable and other borrowings		37,176		34,975
Total liabilities		238,754		222,488
Railroad, Utilities and Energy [Member]
ASSETS
Cash and cash equivalents	[3]	3,712		2,612
Receivables		3,756		3,666
Property, plant and equipment		135,326		131,780
Goodwill		24,750		24,702
Regulatory assets		3,007		3,067
Other		14,915		9,660
Total assets		185,466		175,487
LIABILITIES
Accounts payable, accruals and other liabilities		15,309		11,410
Regulatory liabilities		7,454		7,506
Notes payable and other borrowings		65,018		62,515
Total liabilities		$ 87,781		$ 81,431

[1] Approximately 66% of the aggregate fair value was concentrated in five companies (American Express Company – $17.9 billion; Apple Inc. – $57.0 billion; Bank of America Corporation – $27.8 billion; The Coca-Cola Company – $21.8 billion and Wells Fargo & Company – $20.2 billion).

[2] Approximately 68% of the aggregate fair value was concentrated in five companies (American Express Company – $14.5 billion; Apple Inc. – $40.3 billion; Bank of America Corporation – $22.6 billion; The Coca-Cola Company – $18.9 billion and Wells Fargo & Company – $20.7 billion).

[3] Cash and cash equivalents included U.S. Treasury Bills with maturities of three months or less when purchased of $40.6 billion at September 30, 2019 and $3.9 billion at December 31, 2018.