Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2013
Revenues
Net earned premiums	$ 6,921		$ 7,212		$ 7,271
Net investment income	1,840		2,067		2,282
Net realized investment gains (losses):
Other-than-temporary impairment losses	(156)		(77)		(74)
Portion of other-than-temporary impairments recognized in Other comprehensive income	0		0		(2)
Net other-than-temporary impairment losses recognized in earnings	(156)		(77)		(76)
Other net realized investment gains (loss)	89		134		96
Net realized investment gains (losses)	(67)		57		20
Other revenues	407		356		359
Total revenues	9,101		9,692		9,932
Claims, Benefits and Expenses
Insurance claims and policyholders' benefits	5,384		5,591		5,806
Amortization of deferred acquisition costs	1,540		1,317		1,362
Other operating expenses	1,473		1,394		1,322
Interest	155		183		166
Total claims, benefits and expenses	8,552		8,485		8,656
Income (loss) from continuing operations before income tax	549		1,207		1,276
Income tax expense (benefit)	(70)		(319)		(361)
Net income (loss) from continuing operations	479		888		915
(Loss) income from discontinued operations, net of income tax benefit (expense)	0		(197)		22
Net income (loss)	$ 479	[1]	$ 691	[2]	$ 937
Basic Earnings (Loss) Per Share Attributable to CNA
Income (loss) from continuing operations	$ 1.77		$ 3.29		$ 3.39
(Loss) income from discontinued operations	0.00		(0.73)		0.09
Basic earnings (loss) per share	1.77		2.56		3.48
Diluted Earnings (Loss) Per Share Attributable to CNA
Income (loss) from continuing operations	1.77		3.28		3.39
(Loss) income from discontinued operations	0.00		(0.73)		0.08
Diluted earnings (loss) per share	1.77		2.55		3.47
Dividends per share	$ 3.00		$ 2.00		$ 0.80
Weighted Average Outstanding Common Stock and Common Stock Equivalents
Basic	270.2		269.9		269.7
Diluted	270.7		270.6		270.2

[1] Net income in the fourth quarter of 2015 included a charge related to recognition of a premium deficiency in our long term care business.

[2] Net income in the first quarter of 2014 included the impairment loss on the sale of CAC.