Consolidated Balance Sheets - USD ($) $ in Millions		Dec. 31, 2024	Dec. 31, 2023
Assets:
Investments in fixed maturity securities		$ 15,364	$ 23,758
Investments in equity securities		271,588	353,842
Equity method investments		31,134	29,066
Loans and finance receivables		27,798	24,681
Inventories		24,008	25,856
Equipment held for lease		17,828	16,947
Goodwill	[1]	83,880	84,626
Total assets		1,153,881	1,069,978
Liabilities:
Life, annuity and health insurance benefits		17,616	20,213
Income taxes, principally deferred		85,870	93,009
Total liabilities		502,226	499,208
Redeemable noncontrolling interests			3,261
Shareholders’ equity:
Common stock		8	8
Capital in excess of par value		35,665	34,480
Accumulated other comprehensive income		(3,584)	(3,763)
Retained earnings		696,218	607,350
Treasury stock, at cost		(78,939)	(76,802)
Berkshire shareholders' equity		649,368	561,273
Noncontrolling interests		2,287	6,236
Total shareholders’ equity		651,655	567,509
Total liabilities, redeemable noncontrolling interests and shareholders' equity		1,153,881	1,069,978
Insurance and Other [Member]
Assets:
Cash and cash equivalents	[2]	44,333	34,268
Short-term investments in U.S. Treasury Bills		286,472	129,619
Investments in fixed maturity securities		15,364	23,758
Investments in equity securities		271,588	353,842
Equity method investments		31,134	29,066
Loans and finance receivables		27,798	24,681
Other receivables		43,887	46,261
Inventories		24,008	25,856
Property, plant and equipment		30,071	30,199
Equipment held for lease		17,828	16,947
Goodwill		56,860	57,473
Other intangible assets		34,638	35,884
Deferred charges - retroactive reinsurance		8,797	9,495
Other		24,994	21,866
Total assets		917,772	839,215
Liabilities:
Unpaid losses and loss adjustment expenses		115,151	111,082
Unpaid losses and loss adjustment expenses - retroactive reinsurance contracts		32,443	34,647
Unearned premiums		30,808	30,507
Life, annuity and health insurance benefits		17,616	20,213
Other policyholder liabilities		10,703	11,545
Accounts payable, accruals and other liabilities		37,489	36,559
Payable for purchase of U.S. Treasury Bills		12,769
Aircraft repurchase liabilities and unearned lease revenues		9,356	8,253
Notes payable and other borrowings		44,885	48,468
Liabilities, excluding income taxes, principally deferred, Total		311,220	301,274
Railroad, Utilities and Energy [Member]
Assets:
Cash and cash equivalents	[2]	3,396	3,754
Receivables		4,503	4,999
Property, plant and equipment		175,030	169,447
Goodwill		27,020	27,153
Regulatory assets		5,349	5,565
Other		20,811	19,845
Total assets		236,109	230,763
Liabilities:
Accounts payable, accruals and other liabilities		18,226	18,304
Regulatory liabilities		7,033	6,818
Notes payable and other borrowings		79,877	79,803
Liabilities, excluding income taxes, principally deferred, Total		$ 105,136	$ 104,925

[1] Net of accumulated goodwill impairments of $11.5 billion as of December 31, 2024, $11.1 billion as of December 31, 2023 and $11.0 billion as of December 31, 2022.

[2] Includes U.S. Treasury Bills with maturities of three months or less when purchased of $14.4 billion at December 31, 2024 and $4.8 billion at December 31, 2023.