Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues
Premiums Earned, Net	$ 3,404	$ 3,337	$ 10,117	$ 9,958
Fee income	448	524	1,376	1,522
Net investment income (loss):
Net Investment Income (Loss)	730	810	2,335	2,402
Net realized capital gains (losses):
Total other-than-temporary impairment (OTTI) losses	(42)	(15)	(67)	(46)
Other than Temporary Impairment Losses, Investments, Reclassification Adjustment of Noncredit Portion Included in Net Income, Availabe-for-sale Securities, before Tax	2	1	4	3
Net OTTI losses recognized in earnings	(40)	(14)	(63)	(43)
Gain (Loss) on Investments, Excluding Other than Temporary Impairments	(4)	83	33	73
Total Realized Investment Gains (Losses)	(44)	69	(30)	30
Other revenues	24	29	66	85
Total revenues	4,562	4,769	13,864	13,997
Benefits, losses and expenses
Benefits, losses and loss adjustment expenses	2,710	2,624	8,085	8,223
Amortization of deferred policy acquisition costs and present value of future profits			1,212	1,348
Insurance operating costs and other expenses	971	976	2,829	2,889
Interest expense	88	93	271	282
Total benefits, losses and expenses	4,183	4,273	12,390	12,742
Gains (Losses) on Extinguishment of Debt	0	0	21	0
Income from continuing operations before income taxes	379	496	1,474	1,255
Income Tax Expense (Benefit)	7	108	222	251
Income from continuing operations, net of tax	372	388	1,252	1,004
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	9	0	9	(588)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 381	$ 388	$ 1,261	$ 416
Basic	$ 0.90	$ 0.89	$ 2.99	$ 2.25
Diluted	0.88	0.86	2.92	2.15
Net income available to common shareholders per common share
Basic	0.92	0.89	3.01	0.93
Diluted	0.90	0.86	2.94	0.89
Cash dividends declared per common share	$ 0.21	$ 0.18	$ 0.57	$ 0.48
Reinsurance Loss on Dispositions [Member]
Benefits, losses and expenses
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ (20)	$ 0	$ (28)	$ 0
Continuing Operations [Member]
Benefits, losses and expenses
Amortization of deferred policy acquisition costs and present value of future profits	$ 434	$ 580	$ 1,212	$ 1,348