Consolidated Balance Sheets € in Millions, £ in Millions, $ in Millions, ¥ in Billions		Dec. 31, 2019 USD ($)		Dec. 31, 2018 USD ($)
ASSETS
Investments in fixed maturity securities		$ 18,685		$ 19,898
Investments in equity securities		248,027	[1]	172,757	[2]
Loans and finance receivables		17,527		16,280
Inventories		19,852		19,069
Equipment held for lease		15,065		14,298
Goodwill		81,882		81,025
Deferred charges under retroactive reinsurance contracts		13,747		14,104
Total assets		817,729		707,794
LIABILITIES
Unpaid losses and loss adjustment expenses		73,019		68,458
Unpaid losses and loss adjustment expenses under retroactive reinsurance contracts		42,441		41,834
Income taxes, principally deferred		66,799		51,375
Total liabilities		389,166		355,294
Shareholders’ equity:
Common stock		8		8
Capital in excess of par value		35,658		35,707
Accumulated other comprehensive income		(5,243)		(5,015)
Retained earnings		402,493		321,112
Treasury stock, at cost		(8,125)		(3,109)
Berkshire Hathaway shareholders’ equity		424,791		348,703
Noncontrolling interests		3,772		3,797
Total shareholders’ equity		428,563		352,500
Total liabilities and shareholders' equity		817,729		707,794
Insurance and Other [Member]
ASSETS
Cash and cash equivalents	[3]	61,151		27,749
Short-term investments in U.S. Treasury Bills		63,822		81,506
Investments in fixed maturity securities		18,685		19,898
Investments in equity securities		248,027		172,757
Equity method investments		17,505		17,325
Loans and finance receivables		17,527		16,280
Other receivables		32,418		31,564
Inventories		19,852		19,069
Property, plant and equipment		21,438		20,628
Equipment held for lease		15,065		14,298
Goodwill		57,052		56,323
Other intangible assets		31,051		31,499
Deferred charges under retroactive reinsurance contracts		13,747		14,104
Other		13,232		9,307
Total assets		630,572		532,307
LIABILITIES
Unpaid losses and loss adjustment expenses		73,019		68,458
Unpaid losses and loss adjustment expenses under retroactive reinsurance contracts		42,441		41,834
Unearned premiums		19,782		18,093
Life, annuity and health insurance benefits		20,155		18,632
Other policyholder liabilities		7,723		7,675
Accounts payable, accruals and other liabilities		27,611		25,776
Derivative contract liabilities		968		2,452
Aircraft repurchase liabilities and unearned lease revenues		5,281		4,593
Notes payable and other borrowings		37,590		34,975
Total liabilities		234,570		222,488
Railroad, Utilities and Energy [Member]
ASSETS
Cash and cash equivalents	[3]	3,024		2,612
Receivables		3,417		3,666
Property, plant and equipment		137,838		131,780
Goodwill		24,830		24,702
Regulatory assets		2,881		3,067
Other		15,167		9,660
Total assets		187,157		175,487
LIABILITIES
Accounts payable, accruals and other liabilities		14,708		11,410
Regulatory liabilities		7,311		7,506
Notes payable and other borrowings		65,778		62,515
Total liabilities		$ 87,797		$ 81,431

[1] Approximately 67% of the aggregate fair value was concentrated in five companies (American Express Company – $18.9 billion; Apple Inc. – $73.7 billion; Bank of America Corporation – $33.4 billion; The Coca-Cola Company – $22.1 billion and Wells Fargo & Company – $18.6 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 includes U.S. Treasury Bills with maturities of three months or less when purchased of $37.1 billion at December 31, 2019 and $3.9 billion at December 31, 2018.