Consolidated Balance Sheets (USD $) In Millions	Jun. 30, 2011		Dec. 31, 2010
ASSETS
Cash and cash equivalents	$ 47,891		$ 38,227
Investments in fixed maturity securities	35,854		34,883
Investments in equity securities	67,585		61,513
Inventories	7,960		7,101
Goodwill	49,125		49,006
Total assets	382,696		372,229
LIABILITIES
Income taxes, principally deferred	37,809		36,352
Total liabilities	215,912		209,295
SHAREHOLDERS' EQUITY
Common stock	8		8
Capital in excess of par value	37,771		37,533
Accumulated other comprehensive income	21,106		20,583
Retained earnings	104,122		99,194
Berkshire Hathaway shareholders' equity	163,007		157,318
Noncontrolling interests	3,777		5,616
Total shareholders' equity	166,784		162,934
Total liabilities and shareholders' equity	382,696		372,229
Insurance and Other [Member]
ASSETS
Cash and cash equivalents	43,193		34,767
Investments in fixed maturity securities	34,813		33,803
Investments in equity securities	66,364		59,819
Other investments	13,121		19,333
Receivables	19,396		20,917
Inventories	7,960		7,101
Property, plant and equipment	15,645		15,741
Goodwill	27,999		27,891
Other	14,488		13,529
Total assets	242,979		232,901
LIABILITIES
Losses and loss adjustment expenses	65,060		60,075
Unearned premiums	9,630		7,997
Life, annuity and health insurance benefits	8,892		8,565
Accounts payable, accruals and other liabilities	16,494		15,826
Notes payable and other borrowings	10,161		12,471
Total liabilities	110,237		104,934
Railroad, Utilities and Energy [Member]
ASSETS
Cash and cash equivalents	2,804		2,557
Investments in equity securities	727	[1]	1,182	[1]
Property, plant and equipment	79,307		77,385
Goodwill	20,095		20,084
Other	12,729		13,579
Total assets	114,935		113,605
LIABILITIES
Accounts payable, accruals and other liabilities	12,081		12,367
Notes payable and other borrowings	32,276		31,626
Total liabilities	44,357		43,993
Finance and Financial Products [Member]
ASSETS
Cash and cash equivalents	1,894		903
Investments in fixed maturity securities	1,041		1,080
Investments in equity securities	494	[1]	512	[1]
Other investments	2,817		3,676
Loans and finance receivables	14,199		15,226
Goodwill	1,031		1,031
Other	3,800		3,807
Total assets	24,782		25,723
LIABILITIES
Accounts payable, accruals and other liabilities	1,143		1,168
Derivative contract liabilities	8,086		8,371
Notes payable and other borrowings	14,280		14,477
Total liabilities	$ 23,509		$ 24,016

[1] Included in Other assets.