Segment information (Tables)

9 Months Ended

Sep. 30, 2015

Segment Reporting [Abstract]

Operations By Segment

For the Three Months Ended September 30, 2015	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	$	1,711		$	737		$	1,584		$	185		$	492		$	—		$	4,709
Net premiums earned	1,682			739			1,615			203			480			—			4,719
Losses and loss expenses	1,175			620			674			20			153			1			2,643
Policy benefits	—			—			—			—			89			—			89
Policy acquisition costs	155			42			405			52			117			—			771
Administrative expenses	192			—			246			12			74			44			568
Underwriting income (loss)	160			77			290			119			47			(45		)	648
Net investment income	266			5			132			76			66			4			549
Net realized gains (losses) including OTTI	(33		)	(4		)	(13		)	(14		)	(326		)	(7		)	(397		)
Interest expense	3			—			1			1			1			62			68
Other (income) expense:
(Gains) losses from fair value changes in separate account assets	—			—			—			—			49			—			49
Other	(16		)	(1		)	(6		)	(2		)	(13		)	1			(37		)
Amortization of intangible assets	31			8			12			—			—			—			51
Chubb integration expenses	—			—			—			—			—			9			9
Income tax expense (benefit)	70			15			76			8			8			(45		)	132
Net income (loss)	$	305		$	56		$	326		$	174		$	(258	)	$	(75	)	$	528

For the Three Months Ended September 30, 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	$	1,541		$	764		$	1,719		$	208		$	497		$	—		$	4,729
Net premiums earned	1,518			766			1,726			255			489			—			4,754
Losses and loss expenses	1,053			686			707			92			145			1			2,684
Policy benefits	—			—			—			—			125			—			125
Policy acquisition costs	169			41			418			74			123			—			825
Administrative expenses	165			3			258			13			71			44			554
Underwriting income (loss)	131			36			343			76			25			(45		)	566
Net investment income	277			6			130			81			69			3			566
Net realized gains (losses) including OTTI	(5		)	45			(75		)	6			(89		)	(2		)	(120		)
Interest expense	2			—			2			1			4			61			70
Other (income) expense:
(Gains) losses from fair value changes in separate account assets	—			—			—			—			6			—			6
Other	(31		)	(1		)	(13		)	(10		)	(3		)	6			(52		)
Amortization of intangible assets	—			8			19			—			—			—			27
Income tax expense (benefit)	73			23			97			11			12			(40		)	176
Net income (loss)	$	359		$	57		$	293		$	161		$	(14	)	$	(71	)	$	785

For the Nine Months Ended September 30, 2015	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	$	5,116		$	1,204		$	5,047		$	719		$	1,483		$	—		$	13,569
Net premiums earned	4,896			1,124			4,896			649			1,441			—			13,006
Losses and loss expenses	3,330			913			2,304			191			442			2			7,182
Policy benefits	—			—			—			—			384			—			384
Policy acquisition costs	446			61			1,190			166			342			—			2,205
Administrative expenses	552			3			756			37			221			131			1,700
Underwriting income (loss)	568			147			646			255			52			(133		)	1,535
Net investment income	798			17			409			230			198			10			1,662
Net realized gains (losses) including OTTI	(39		)	(6		)	(10		)	(20		)	(282		)	(3		)	(360		)
Interest expense	7			—			3			3			4			190			207
Other (income) expense:
(Gains) losses from fair value changes in separate account assets	—			—			—			—			32			—			32
Other	(32		)	1			(19		)	(10		)	(43		)	10			(93		)
Amortization of intangible assets	63			22			50			—			1			—			136
Chubb integration expenses	—			—			—			—			—			9			9
Income tax expense (benefit)	239			29			197			23			27			(120		)	395
Net income (loss)	$	1,050		$	106		$	814		$	449		$	(53	)	$	(215	)	$	2,151

For the Nine Months Ended September 30, 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	$	4,594		$	1,346	$	5,250		$	794		$	1,489		$	—		$	13,473
Net premiums earned	4,547			1,199		5,047			800			1,463			—			13,056
Losses and loss expenses	3,009			1,099		2,354			327			442			2			7,233
Policy benefits	—			—		—			—			383			—			383
Policy acquisition costs	480			69		1,206			201			355			—			2,311
Administrative expenses	501			5		764			41			212			132			1,655
Underwriting income (loss)	557			26		723			231			71			(134		)	1,474
Net investment income	812			19		398			238			199			9			1,675
Net realized gains (losses) including OTTI	(25		)	51		(71		)	(17		)	(237		)	2			(297		)
Interest expense	7			—		4			4			10			188			213
Other (income) expense:
(Gains) losses from fair value changes in separate account assets	—			—		—			—			(5		)	—			(5		)
Other	(75		)	—		(44		)	(39		)	6			18			(134		)
Amortization of intangible assets	—			24		52			—			2			—			78
Income tax expense (benefit)	247			21		189			31			34			(120		)	402
Net income (loss)	$	1,165		$	51	$	849		$	456		$	(14	)	$	(209	)	$	2,298

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 September 30, 2015
Insurance – North American P&C	$	511	$	1,063	$	108	$	1,682
Insurance – North American Agriculture	739		—		—		739
Insurance – Overseas General	706		386		523		1,615
Global Reinsurance	104		99		—		203
Life	—		—		480		480
	$	2,060	$	1,548	$	1,111	$	4,719
For the Three Months Ended September 30, 2014
Insurance – North American P&C	$	420	$	993	$	105	$	1,518
Insurance – North American Agriculture	766		—		—		766
Insurance – Overseas General	744		394		588		1,726
Global Reinsurance	149		106		—		255
Life	—		—		489		489
	$	2,079	$	1,493	$	1,182	$	4,754
(in millions of U.S. dollars)	Property & All Other		Casualty		Life, Accident & Health		ACE Consolidated
For the Nine Months Ended September 30, 2015
Insurance – North American P&C	$	1,428	$	3,157	$	311	$	4,896
Insurance – North American Agriculture	1,124		—		—		1,124
Insurance – Overseas General	2,163		1,159		1,574		4,896
Global Reinsurance	323		326		—		649
Life	—		—		1,441		1,441
	$	5,038	$	4,642	$	3,326	$	13,006
For the Nine Months Ended September 30, 2014
Insurance – North American P&C	$	1,248	$	2,992	$	307	$	4,547
Insurance – North American Agriculture	1,199		—		—		1,199
Insurance – Overseas General	2,164		1,158		1,725		5,047
Global Reinsurance	435		365		—		800
Life	—		—		1,463		1,463
	$	5,046	$	4,515	$	3,495	$	13,056