Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenues
Premiums Earned, Net	$ 3,473	$ 3,404
Fee income	455	445
Net investment income (loss):
Net Investment Income (Loss)	728	696
Net realized capital gains (losses):
Total other-than-temporary impairment (OTTI) losses	(3)	(27)
Other than Temporary Impairment Losses, Investments, Reclassification Adjustment of Noncredit Portion Included in Net Income, Availabe-for-sale Securities, before Tax	2	4
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Available-for-sale Securities	(1)	(23)
Gain (Loss) on Investments, Excluding Other than Temporary Impairments	(19)	(132)
Total Realized Investment Gains (Losses)	(20)	(155)
Other revenues	19	20
Total revenues	4,655	4,410
Benefits, losses and expenses
Benefits, losses and loss adjustment expenses	2,757	2,641
Amortization of deferred policy acquisition costs and present value of future profits	363	374
Insurance operating costs and other expenses	965	928
Interest expense	83	86
Benefits, Losses and Expenses	4,168	4,029
Income from continuing operations before income taxes	487	381
Income Tax Expense (Benefit)	109	58
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 378	$ 323
Net income available to common shareholders per common share
Basic	$ 1.02	$ 0.81
Diluted	1.00	0.79
Cash dividends declared per common share	$ 0.23	$ 0.21