Significant business acquisitions (Tables)

12 Months Ended

Dec. 31, 2014

Schedule of estimated fair values of assets acquired and liabilities assumed

NV Energy’s and AltaLink’s assets acquired, liabilities assumed and residual goodwill at their respective acquisition dates are summarized as follows (in millions).

	AltaLink as of December 1, 2014		NV Energy as of December 19, 2013
Property, plant and equipment	$	5,610	$	9,511
Goodwill		1,700		2,369
Other assets, including cash and cash equivalents		294		2,506
Assets acquired	$	7,604	$	14,386
Accounts payable, accruals and other liabilities	$	1,025	$	3,456
Notes payable and other borrowings		3,851		5,334
Liabilities assumed	$	4,876	$	8,790
Net assets acquired	$	2,728	$	5,596

Schedule of pro forma consolidated earnings data

The following table sets forth certain unaudited pro forma consolidated earnings data for 2014 and 2013, as if the acquisitions discussed previously were consummated on the same terms at the beginning of the year preceding their respective acquisition dates (in millions, except per share amounts).

	December 31,
	2014		2013
Revenues	$	195,298	$	186,664
Net earnings attributable to Berkshire Hathaway shareholders		19,975		19,845
Net earnings per equivalent Class A common share attributable to Berkshire Hathaway shareholders		12,154		12,074