Segment information (Tables)

12 Months Ended

Dec. 31, 2017



For the Year Ended December 31, 2017 (in millions of U.S. dollars)	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
Net premiums written	$	12,028	$	4,533		$	1,516		$	8,341		$	685		$	2,141		$	—		$	29,244
Net premiums earned	12,191		4,399			1,508			8,131			704			2,101			—			29,034
Losses and loss expenses	8,287		3,265			1,036			4,281			561			739			285			18,454
Policy benefits	—		—			—			—			—			676			—			676
Policy acquisition costs	1,873		899			81			2,221			177			530			—			5,781
Administrative expenses	981		264			(8		)	982			44			303			267			2,833
Underwriting income (loss)	1,050		(29		)	399			647			(78		)	(147		)	(552		)	1,290
Net investment income	1,961		226			25			610			273			313			(283		)	3,125
Other (income) expense	1		4			2			(4		)	(1		)	(84		)	(318		)	(400		)
Amortization expense of purchased intangibles	—		16			29			45			—			2			168			260
Segment income (loss)	3,010		177			393			1,216			196			248			(685		)	4,555
Net realized gains (losses) including OTTI																		84			84
Interest expense																		607			607
Chubb integration expenses																		310			310
Income tax benefit																		(139		)	(139		)
Net income (loss)																		$	(1,379	)	$	3,861



For the Year Ended December 31, 2016 (in millions of U.S. dollars)	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
Net premiums written	$	11,740		$	4,153	$	1,328		$	8,124		$	676		$	2,124		$	—		$	28,145
Net premiums earned	12,217			4,319		1,316			8,132			710			2,055			—			28,749
Losses and loss expenses	7,439			2,558		893			4,005			325			663			169			16,052
Policy benefits	—			—		—			—			—			588			—			588
Policy acquisition costs	2,023			966		83			2,136			187			509			—			5,904
Administrative expenses	1,125			363		(6		)	1,057			52			307			183			3,081
Underwriting income (loss)	1,630			432		346			934			146			(12		)	(352		)	3,124
Net investment income	1,860			207		20			600			263			283			(368		)	2,865
Other (income) expense	(2		)	6		1			(11		)	(4		)	5			(217		)	(222		)
Amortization expense (benefit) of purchased intangibles	—			19		29			48			—			3			(80		)	19
Segment income (loss)	3,492			614		336			1,497			413			263			(423		)	6,192
Net realized gains (losses) including OTTI																		(145		)	(145		)
Interest expense																		605			605
Chubb integration expense																		492			492
Income tax expense																		815			815
Net income (loss)																		$	(2,480	)	$	4,135



For the Year Ended December 31, 2015 (in millions of U.S. dollars)	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
Net premiums written	$	5,715		$	1,192	$	1,346	$	6,634		$	828		$	1,998	$	—		$	17,713
Net premiums earned	5,634			948		1,364		6,471			849			1,947		—			17,213
Losses and loss expenses	3,661			590		1,088		3,052			290			601		202			9,484
Policy benefits	—			—		—		—			—			543		—			543
Policy acquisition costs	531			69		69		1,581			214			476		1			2,941
Administrative expenses	621			123		1		997			49			291		188			2,270
Underwriting income (loss)	821			166		206		841			296			36		(391		)	1,975
Net investment income	1,032			25		23		534			300			265		15			2,194
Other (income) expense	(7		)	2		1		(17		)	(6		)	23		(47		)	(51		)
Amortization expense of purchased intangibles	—			78		30		61			—			2		—			171
Segment income (loss)	1,860			111		198		1,331			602			276		(329		)	4,049
Net realized gains (losses) including OTTI																(420		)	(420		)
Interest expense																300			300
Chubb Integration Expense																33			33
Income tax expense																462			462
Net income (loss)																$	(1,544	)	$	2,834

The following table presents net premiums earned for each segment by line of business:




	For the Year Ended December 31
(in millions of U.S. dollars)	2017		2016		2015
North America Commercial P&C Insurance
Property & other short-tail lines	$	1,899	$	1,963	$	1,040
Casualty & all other	9,554		9,552		4,175
A&H	738		702		419
Total North America Commercial P&C Insurance	12,191		12,217		5,634
North America Personal P&C Insurance
Personal automobile	742		699		186
Personal homeowners	3,014		3,007		579
Personal other	643		613		183
Total North America Personal P&C Insurance	4,399		4,319		948
North America Agricultural Insurance	1,508		1,316		1,364
Overseas General Insurance
Property & other short-tail lines	2,076		2,133		1,833
Casualty & all other	2,266		2,177		1,361
Personal lines	1,609		1,626		1,211
A&H	2,180		2,196		2,066
Total Overseas General Insurance	8,131		8,132		6,471
Global Reinsurance
Property & other short-tail lines	132		118		155
Property catastrophe	198		185		219
Casualty & all other	374		407		475
Total Global Reinsurance	704		710		849
Life Insurance
Life	980		1,002		931
A&H	1,121		1,053		1,016
Total Life Insurance	2,101		2,055		1,947
Total net premiums earned	$	29,034	$	28,749	$	17,213