Segment information (Tables)

12 Months Ended

Dec. 31, 2012

Statement of Operations by Segment



For the Year Ended December 31, 2012 (in millions of U.S. dollars)	Insurance – North American			Insurance – Overseas General		Global Reinsurance			Life			Corporate and Other			ACE Consolidated
Net premiums written	$	7,208		$	5,863	$	1,025		$	1,979		$	—		$	16,075
Net premiums earned	7,019			5,740		1,002			1,916			—			15,677
Losses and loss expenses	5,626			2,862		553			611			1			9,653
Policy benefits	—			—		—			521			—			521
Policy acquisition costs	586			1,353		172			334			1			2,446
Administrative expenses	601			935		51			328			181			2,096
Underwriting income (loss)	206			590		226			122			(183		)	961
Net investment income	1,091			521		290			251			28			2,181
Net realized gains (losses) including OTTI	42			103		6			(72		)	(1		)	78
Interest expense	12			5		4			12			217			250
Other (income) expense:
(Gains) losses from fair value changes in separate account assets	—			—		—			(29		)	—			(29		)
Other	(9		)	3		(15		)	25			19			23
Income tax expense (benefit)	200			133		15			58			(136		)	270
Net income (loss)	$	1,136		$	1,073	$	518		$	235		$	(256	)	$	2,706

Statement of Operations by Segment



For the Year Ended December 31, 2011 (in millions of U.S. dollars)	Insurance – North American		Insurance – Overseas General		Global Reinsurance			Life			Corporate and Other			ACE Consolidated
Net premiums written	$	6,851	$	5,629	$	979		$	1,913		$	—		$	15,372
Net premiums earned	6,911		5,614		1,003			1,859			—			15,387
Losses and loss expenses	5,276		3,029		621			593			1			9,520
Policy benefits	—		—		—			401			—			401
Policy acquisition costs	612		1,335		185			339			1			2,472
Administrative expenses	592		939		52			317			168			2,068
Underwriting income (loss)	431		311		145			209			(170		)	926
Net investment income	1,170		546		287			226			13			2,242
Net realized gains (losses) including OTTI	34		33		(50		)	(806		)	(6		)	(795		)
Interest expense	15		5		2			11			217			250
Other (income) expense
(Gains) losses from fair value changes in separate account assets	—		—		—			36			—			36
Other	5		—		(1		)	26			15			45
Income tax expense (benefit)	395		164		30			50			(137		)	502
Net income (loss)	$	1,220	$	721	$	351		$	(494	)	$	(258	)	$	1,540

Statement of Operations by Segment



For the Year Ended December 31, 2010 (in millions of U.S. dollars)	Insurance – North American			Insurance – Overseas General			Global Reinsurance			Life			Corporate and Other			ACE Consolidated
Net premiums written	$	5,797		$	5,189		$	1,075		$	1,647		$	—		$	13,708
Net premiums earned	5,651			5,153			1,071			1,629			—			13,504
Losses and loss expenses	3,918			2,615			518			528			—			7,579
Policy benefits	—			—			—			357			—			357
Policy acquisition costs	626			1,209			204			306			—			2,345
Administrative expenses	561			837			55			246			174			1,873
Underwriting income (loss)	546			492			294			192			(174		)	1,350
Net investment income	1,138			473			288			174			(3		)	2,070
Net realized gains (losses) including OTTI	417			123			93			(192		)	(9		)	432
Interest expense	9			1			—			3			211			224
Other (income) expense	(22		)	(13		)	(23		)	26			22			(10		)
Income tax expense (benefit)	435			171			42			59			(154)			553
Net income (loss)	$	1,679		$	929		$	656		$	86		$	(265	)	$	3,085

Net Premiums Earned For Segment By Product



(in millions of U.S. dollars)	Property & All Other		Casualty		Life, Accident & Health		ACE Consolidated
For the Year Ended December 31, 2012
Insurance – North American	$	3,242	$	3,406	$	371	$	7,019
Insurance – Overseas General	2,236		1,379		2,125		5,740
Global Reinsurance	495		507		—		1,002
Life	—		—		1,916		1,916
	$	5,973	$	5,292	$	4,412	$	15,677
For the Year Ended December 31, 2011
Insurance – North American	$	3,174	$	3,380	$	357	$	6,911
Insurance – Overseas General	2,080		1,415		2,119		5,614
Global Reinsurance	458		545		—		1,003
Life	—		—		1,859		1,859
	$	5,712	$	5,340	$	4,335	$	15,387
For the Year Ended December 31, 2010
Insurance – North American	$	1,578	$	3,777	$	296	$	5,651
Insurance – Overseas General	1,800		1,424		1,929		5,153
Global Reinsurance	520		551		—		1,071
Life	—		—		1,629		1,629
	$	3,898	$	5,752	$	3,854	$	13,504

Net Premiums Earned by Geographic Region

Years Ended

- Definition

Tabular disclosure of the names of foreign countries from which revenue is material and the amount of revenue from external customers attributed to those countries. An entity may also provide subtotals of geographic information about groups of countries.

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- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

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