Segment information (Tables)

3 Months Ended

Mar. 31, 2017

Segment Reporting [Abstract]

Operations By Segment

The following tables present the Statement of Operations by segment:

	North America Commercial P&C Insurance		North America Personal P&C Insurance		North America Agricultural Insurance			Overseas General Insurance			Global Reinsurance		Life Insurance			Corporate			Chubb Consolidated
For the Three Months Ended
March 31, 2017
(in millions of U.S. dollars)
Net premiums written	$	2,742	$	984	$	61		$	2,200		$	199	$	524		$	—		$	6,710
Net premiums earned	3,041		1,086		14			1,936			189		506			—			6,772
Losses and loss expenses	1,860		633		(73		)	1,071			94		193			11			3,789
Policy benefits	—		—		—			—			—		168			—			168
Policy acquisition costs	487		217		(1		)	529			51		114			—			1,397
Administrative expenses	231		65		(5		)	245			10		72			58			676
Underwriting income (loss)	463		171		93			91			34		(41		)	(69		)	742
Net investment income (loss)	478		55		6			148			62		75			(79		)	745
Other (income) expense	4		1		—			(1		)	—		(29		)	(45		)	(70		)
Amortization expense of purchased intangibles	—		3		7			11			—		1			42			64
Segment income (loss)	$	937	$	222	$	92		$	229		$	96	$	62		$	(145	)	$	1,493
Net realized gains (losses) including OTTI																(7		)	(7		)
Interest expense																154			154
Chubb integration expenses																111			111
Income tax expense																128			128
Net income (loss)																$	(545	)	$	1,093

	North America Commercial P&C Insurance		North America Personal P&C Insurance		North America Agricultural Insurance			Overseas General Insurance			Global Reinsurance			Life Insurance		Corporate			Chubb Consolidated
For the Three Months Ended
March 31, 2016
(in millions of U.S. dollars)
Net premiums written	$	2,302	$	871	$	64		$	2,041		$	201		$	516	$	—		$	5,995
Net premiums earned	2,896		1,024		23			1,955			202			497		—			6,597
Losses and loss expenses	1,747		661		(30		)	1,021			89			177		9			3,674
Policy benefits	—		—		—			—			—			126		—			126
Policy acquisition costs	482		249		4			503			53			122		—			1,413
Administrative expenses	266		88		(4		)	263			14			72		73			772
Underwriting income (loss)	401		26		53			168			46			—		(82		)	612
Net investment income (loss)	426		47		5			146			67			67		(84		)	674
Other (income) expense	—		1		—			(5		)	(1		)	6		27			28
Amortization expense (benefit) of purchased intangibles	—		8		7			11			—			1		(20		)	7
Segment income (loss)	$	827	$	64	$	51		$	308		$	114		$	60	$	(173	)	$	1,251
Net realized gains (losses) including OTTI																(394		)	(394		)
Interest expense																146			146
Chubb integration expenses																148			148
Income tax expense																124			124
Net income (loss)																$	(985	)	$	439