Business Segments (Tables)

3 Months Ended

Mar. 31, 2016

Segment Reporting [Abstract]

Significant components of the Company's continuing operations and selected balance sheet items

The Company's results of operations and selected balance sheet items by segment are presented in the following tables.

Three months ended March 31, 2016	Specialty			Commercial			International			Life & Group Non-Core			Corporate & Other Non-Core
(In millions)																Eliminations		Total
Operating revenues
Net earned premiums	$	682		$	688		$	198		$	131		$	—		$	—	$	1,699
Net investment income	107			126			12			187			3			—		435
Other revenues	87			6			1			—			3			—		97
Total operating revenues	876			820			211			318			6			—		2,231
Claims, Benefits and Expenses
Net incurred claims and benefits	390			442			121			323			128			—		1,404
Policyholders’ dividends	1			3			—			—			—			—		4
Amortization of deferred acquisition costs	144			116			47			—			—			—		307
Other insurance related expenses	75			141			28			33			—			—		277
Other expenses	75			5			9			3			54			—		146
Total claims, benefits and expenses	685			707			205			359			182			—		2,138
Operating income (loss) before income tax	191			113			6			(41		)	(176		)	—		93
Income tax (expense) benefit on operating income (loss)	(64		)	(39		)	—			39			62			—		(2		)
Net operating income (loss)	127			74			6			(2		)	(114		)	—		91
Net realized investment gains (losses)	(11		)	(18		)	4			(3		)	(8		)	—		(36		)
Income tax (expense) benefit on net realized investment gains (losses)	4			6			(1		)	—			2			—		11
Net realized investment gains (losses), after tax	(7		)	(12		)	3			(3		)	(6		)	—		(25		)
Net income (loss)	$	120		$	62		$	9		$	(5	)	$	(120	)	$	—	$	66

March 31, 2016
(In millions)
Reinsurance receivables	$	765	$	623	$	139	$	496	$	2,707	$	—		$	4,730
Insurance receivables	884		1,025		276		14		2		—			2,201
Deferred acquisition costs	309		225		88		—		—		—			622
Goodwill	117		—		33		—		—		—			150
Insurance reserves
Claim and claim adjustment expenses	6,325		9,095		1,395		3,311		2,892		—			23,018
Unearned premiums	1,861		1,347		464		136		—		(1		)	3,807
Future policy benefits	—		—		—		10,500		—		—			10,500

Three months ended March 31, 2015	Specialty			Commercial			International			Life & Group Non-Core			Corporate & Other Non-Core
(In millions)																Eliminations			Total
Operating revenues
Net earned premiums	$	680		$	678		$	191		$	138		$	—		$	—		$	1,687
Net investment income	155			204			14			179			6			—			558
Other revenues	78			9			—			9			2			(1		)	97
Total operating revenues	913			891			205			326			8			(1		)	2,342
Claims, Benefits and Expenses
Net incurred claims and benefits	429			454			116			340			(4		)	—			1,335
Policyholders’ dividends	1			3			—			—			—			—			4
Amortization of deferred acquisition costs	144			117			35			7			—			—			303
Other insurance related expenses	69			127			37			35			—			—			268
Other expenses	67			8			5			4			46			(1		)	129
Total claims, benefits and expenses	710			709			193			386			42			(1		)	2,039
Operating income (loss) before income tax	203			182			12			(60		)	(34		)	—			303
Income tax (expense) benefit on operating income (loss)	(68		)	(62		)	(3		)	43			12			—			(78		)
Net operating income (loss)	135			120			9			(17		)	(22		)	—			225
Net realized investment gains (losses)	4			4			1			1			—			—			10
Income tax (expense) benefit on net realized investment gains (losses)	(1		)	(3		)	—			2			—			—			(2		)
Net realized investment gains (losses), after tax	3			1			1			3			—			—			8
Net income (loss)	$	138		$	121		$	10		$	(14	)	$	(22	)	$	—		$	233

December 31, 2015
(In millions)
Reinsurance receivables	$	724	$	639	$	144	$	497	$	2,487	$	—	$	4,491
Insurance receivables	890		993		233		11		2		—		2,129
Deferred acquisition costs	307		213		78		—		—		—		598
Goodwill	117		—		33		—		—		—		150
Insurance reserves
Claim and claim adjustment expenses	6,269		9,183		1,347		3,220		2,644		—		22,663
Unearned premiums	1,839		1,297		415		120		—		—		3,671
Future policy benefits	—		—		—		10,152		—		—		10,152

Revenues by line of business

The following table presents revenue by line of business for each reportable segment. Revenues are comprised of Operating revenues and Net realized investment gains and losses.

Three months ended March 31
(In millions)	2016			2015
Specialty
Management & Professional Liability	$	618		$	697
Surety	127			120
Warranty & Alternative Risks	120			100
Specialty revenues	865			917
Commercial
Middle Market	401			409
Small Business	143			165
Other Commercial Insurance	258			321
Commercial revenues	802			895
International
Canada	50			55
CNA Europe	78			77
Hardy	87			74
International revenues	215			206
Life & Group Non-Core revenues	315			327
Corporate & Other Non-Core revenues	(2		)	8
Eliminations	—			(1		)
Total revenues	$	2,195		$	2,352