Segment information (Tables)

3 Months Ended

Mar. 31, 2014

Segment Reporting [Abstract]

Operations By Segment

For the Three Months Ended March 31, 2014	Insurance – North American P&C			Insurance – North American Agriculture			Insurance – Overseas General			Global Reinsurance			Life			Corporate			ACE Consolidated
(in millions of U.S. dollars)
Net premiums written	$	1,418		$	194		$	1,771		$	308		$	494		$	—		$	4,185
Net premiums earned	1,487			103			1,612			284			484			—			3,970
Losses and loss expenses	940			126			817			126			151			1			2,161
Policy benefits	—			—			—			—			114			—			114
Policy acquisition costs	159			5			386			67			111			—			728
Administrative expenses	161			1			250			14			68			41			535
Underwriting income (loss)	227			(29		)	159			77			40			(42		)	432
Net investment income	270			7			132			77			64			3			553
Net realized gains (losses) including OTTI	(9		)	(2		)	(10		)	(8		)	(76		)	1			(104		)
Interest expense	3			—			1			1			3			63			71
Other (income) expense:
(Gains) losses from fair value changes in separate account assets	—			—			—			—			6			—			6
Other	(20		)	8			(6		)	(19		)	7			7			(23		)
Income tax expense (benefit)	83			(7		)	37			10			10			(40		)	93
Net income (loss)	$	422		$	(25	)	$	249		$	154		$	2		$	(68	)	$	734

For the Three Months Ended March 31, 2013	Insurance – North American P&C			Insurance – North American Agriculture		Insurance – Overseas General			Global Reinsurance			Life			Corporate			ACE Consolidated
(in millions of U.S. dollars)
Net premiums written	$	1,284		$	113	$	1,620		$	279		$	502		$	—		$	3,798
Net premiums earned	1,338			52		1,459			247			477			—			3,573
Losses and loss expenses	878			32		747			106			157			6			1,926
Policy benefits	—			—		—			—			131			—			131
Policy acquisition costs	143			4		339			48			80			—			614
Administrative expenses	125			5		236			12			85			51			514
Underwriting income (loss)	192			11		137			81			24			(57		)	388
Net investment income	251			6		132			72			63			7			531
Net realized gains (losses) including OTTI	26			—		34			20			127			(1		)	206
Interest (income) expense	(2		)	—		1			1			4			56			60
Other (income) expense:
(Gains) losses from fair value changes in separate account assets	—			—		—			—			(4		)	—			(4		)
Other	(15		)	8		(1		)	(8		)	—			10			(6		)
Income tax expense (benefit)	94			2		46			8			13			(41		)	122
Net income (loss)	$	392		$	7	$	257		$	172		$	201		$	(76	)	$	953

Net Premiums Earned For Segment By Product

(in millions of U.S. dollars)	Property & All Other		Casualty		Life, Accident & Health		ACE Consolidated
For the Three Months Ended March 31, 2014
Insurance – North American P&C	$	405	$	981	$	101	$	1,487
Insurance – North American Agriculture	103		—		—		103
Insurance – Overseas General	693		369		550		1,612
Global Reinsurance	154		130		—		284
Life	—		—		484		484
	$	1,355	$	1,480	$	1,135	$	3,970
For the Three Months Ended March 31, 2013
Insurance – North American P&C	$	347	$	902	$	89	$	1,338
Insurance – North American Agriculture	52		—		—		52
Insurance – Overseas General	585		339		535		1,459
Global Reinsurance	135		112		—		247
Life	—		—		477		477
	$	1,119	$	1,353	$	1,101	$	3,573