Business segment data (Tables)

12 Months Ended

Dec. 31, 2019

A disaggregation of our consolidated data for each of the three most recent years is presented as follows (in millions).

	Revenues							Earnings before income taxes
	2019		2018		2017			2019			2018			2017
Operating Businesses:
Insurance:
Underwriting:
GEICO	$	35,572	$	33,363	$	29,441		$	1,506		$	2,449		$	(310	)
Berkshire Hathaway Primary Group		9,165		8,111		7,143			383			670			719
Berkshire Hathaway Reinsurance Group		16,341		15,944		24,013			(1,472	)		(1,109	)		(3,648	)
Insurance underwriting		61,078		57,418		60,597			417			2,010			(3,239	)
Investment income		6,615		5,518		4,865			6,600			5,503			4,855
Total insurance		67,693		62,936		65,462			7,017			7,513			1,616

BNSF		23,515		23,855		21,387			7,250			6,863			6,328
Berkshire Hathaway Energy		20,114		19,987		18,854			2,618			2,472			2,499
Manufacturing		62,730		61,883		57,645			9,522			9,366			8,324
McLane Company		50,458		49,987		49,775			288			246			299
Service and retailing		29,487		28,939		27,219			2,555			2,696			2,304
		253,997		247,587		240,342			29,250			29,156			21,370
Reconciliation to consolidated amount:
Investment and derivative gains/losses		—		—		—			72,607			(22,455	)		2,128
Interest expense, not allocated to segments		—		—		—			(416	)		(458	)		(486	)
Equity method investments		—		—		—			1,176			(2,167	)		3,014
Corporate, eliminations and other		619		250		(409	)		79			(75	)		(2,188	)
	$	254,616	$	247,837	$	239,933		$	102,696		$	4,001		$	23,838

	Interest expense									Income tax expense
	2019			2018			2017			2019			2018			2017
Operating Businesses:
Insurance	$	—		$	—		$	—		$	1,166		$	1,374		$	(71	)
BNSF		1,070			1,041			1,016			1,769			1,644			2,369
Berkshire Hathaway Energy		1,835			1,777			2,254			(526	)		(452	)		148
Manufacturing		752			690			679			2,253			2,188			2,678
McLane Company		—			15			19			71			59			94
Service and retailing		86			91			67			603			634			812
		3,743			3,614			4,035			5,336			5,447			6,030
Reconciliation to consolidated amount:
Investment and derivative gains/losses		—			—			—			15,159			(4,673	)		742
Interest expense, not allocated to segments		416			458			486			(88	)		(96	)		(170	)
Equity method investments		—			—			—			148			(753	)		910
Income tax net benefit – Tax Cuts and Jobs Act of 2017		—			—			—			—			—			(28,200	)
Corporate, eliminations and other		(198	)		(219	)		(135	)		349			(246	)		(827	)
	$	3,961		$	3,853		$	4,386		$	20,904		$	(321	)	$	(21,515	)

Notes to Consolidated Financial Statements (Continued)

(27)	Business segment data (Continued)

	Capital expenditures						Depreciation of tangible assets
	2019		2018		2017		2019		2018		2017
Operating Businesses:
Insurance	$	108	$	130	$	170	$	82	$	79	$	84
BNSF		3,608		3,187		3,256		2,350		2,268		2,304
Berkshire Hathaway Energy		7,364		6,241		4,571		2,947		2,830		2,548
Manufacturing		2,981		3,116		2,490		1,951		1,890		1,839
McLane Company		158		276		289		225		204		193
Service and retailing		1,760		1,587		932		1,192		1,115		751
	$	15,979	$	14,537	$	11,708	$	8,747	$	8,386	$	7,719

	Goodwill at year-end						Identifiable assets at year-end
	2019		2018		2017		2019		2018		2017
Operating Businesses:
Insurance	$	15,289	$	15,289	$	15,499	$	364,550	$	289,746	$	294,418
BNSF		14,851		14,851		14,845		73,699		70,242		69,438
Berkshire Hathaway Energy		9,979		9,851		9,935		88,651		80,543		77,710
Manufacturing		34,800		34,019		33,967		104,437		99,912		97,753
McLane Company		734		734		734		6,872		6,243		6,090
Service and retailing		6,229		6,281		6,278		26,494		24,724		20,014
	$	81,882	$	81,025	$	81,258		664,703		571,410		565,423
Reconciliation to consolidated amount:
Corporate and other								71,144		55,359		55,414
Goodwill								81,882		81,025		81,258
							$	817,729	$	707,794	$	702,095

Property/casualty and life/health insurance premiums written and earned are summarized below (in millions).

Insurance premiums written by geographic region (based upon the domicile of the insured or reinsured) are summarized below (in millions).