Significant business acquisitions (Tables)

6 Months Ended

Jun. 30, 2023

Business Acquisition [Line Items]

Summary of unaudited pro forma consolidated earnings

ertain unaudited pro forma revenue and consolidated earnings (loss) data for the six months ended June 30, 2022 as if the Alleghany and Pilot acquisitions were consummated on the same terms at the beginning of 2022 follows (in millions, except per share amounts).

	June 30, 2022
Revenues	$	188,855
Net earnings (loss) attributable to Berkshire Hathaway shareholders		(38,169	)
Net earnings (loss) per equivalent Class A common share		(25,919	)

Pilot Travel Centers ("Pilot") [Member]

Business Acquisition [Line Items]

Summary of preliminary values of identified assets acquired and liabilities assumed

The preliminary values of Pilot’s assets acquired, liabilities assumed and redeemable noncontrolling interests as of January 31, 2023 are summarized as follows (in millions). The valuations of certain assets and liabilities, including property, plant and equipment, other intangible assets and goodwill, as of the acquisition date have not been finalized and are provisional.

	Pilot
Property, plant and equipment	$	8,082
Goodwill and other intangible assets		13,309
Other assets		6,994
Assets acquired	$	28,385
Notes payable	$	5,876
Other liabilities		4,774
Liabilities assumed		10,650
Noncontrolling interests, predominantly redeemable		3,370
Net assets	$	14,365

Alleghany Corporation [Member]

Business Acquisition [Line Items]

Summary of preliminary values of identified assets acquired and liabilities assumed

A summary of the values of the Alleghany assets acquired and liabilities assumed as of October 19, 2022 follows (in millions).

	Alleghany
Cash, cash equivalents and U.S. Treasury Bills	$	3,762
Investments in fixed maturity and equity securities		15,982
Loans and other receivables		5,650
Goodwill		3,900
Other intangible assets		2,659
Other assets		3,637
Assets acquired	$	35,590
Unpaid losses and loss adjustment expenses	$	15,080
Unearned premiums		3,536
Notes payable		2,169
Other liabilities		3,300
Liabilities assumed		24,085
Net assets	$	11,505

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