Segment information (Tables)

3 Months Ended

Mar. 31, 2016

Segment Reporting [Abstract]

Operations By Segment

For the Three Months Ended	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
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
Segment income (loss)	827		73		58			314		113		67		(166		)	1,286
Net realized gains (losses) including OTTI														(394		)	(394		)
Interest expense														146			146
Other (income) expense:
(Gains) losses from fair value changes in separate account assets														3			3
Other														25			25
Amortization of purchased intangibles														7			7
Chubb integration expenses														148			148
Income tax expense														124			124
Net income (loss)														$	(1,013	)	$	439

For the Three Months Ended	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
March 31, 2015
(in millions of U.S. dollars)
Net premiums written	$	1,297	$	133		$	88		$	1,794	$	273	$	491	$	—		$	4,076
Net premiums earned	1,380		146			64			1,637		226		474		—			3,927
Losses and loss expenses	915		111			22			814		99		152		9			2,122
Policy benefits	—		—			—			—		—		142		—			142
Policy acquisition costs	130		31			(4		)	389		54		107		—			707
Administrative expenses	151		19			(1		)	256		12		73		44			554
Underwriting income (loss)	184		(15		)	47			178		61		—		(53		)	402
Net investment income	258		5			6			138		75		66		3			551
Segment income (loss)	442		(10		)	53			316		136		66		(50		)	953
Net realized gains (losses) including OTTI															(89		)	(89		)
Interest expense															68			68
Other (income) expense:
(Gains) losses from fair value changes in separate account assets															(11		)	(11		)
Other															(24		)	(24		)
Amortization of purchased intangibles															30			30
Income tax expense															120			120
Net income (loss)															$	(322	)	$	681