CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenues
Property-liability insurance premiums	$ 7,064	$ 6,770
Life and annuity premiums and contract charges	607	579
Net investment income	959	983
Realized capital gains and losses:
Total other-than-temporary impairment losses	(80)	(27)
Portion of loss recognized in other comprehensive income	(1)	(10)
Net other-than-temporary impairment losses recognized in earnings	(81)	(37)
Sales and other realized capital gains and losses	135	168
Total realized capital gains and losses	54	131
Total revenues	8,684	8,463
Costs and expenses
Property-liability insurance claims and claims expense	4,759	4,460
Life and annuity contract benefits	488	458
Interest credited to contractholder funds	307	345
Amortization of deferred policy acquisition costs	1,035	946
Operating costs and expenses	1,094	1,102
Restructuring and related charges	6	26
Interest expense	87	98
Total costs and expenses	7,776	7,435
(Loss) gain on disposition of operations	(59)	2
Income from operations before income tax expense	849	1,030
Income tax expense	249	321
Net income	600	709
Preferred stock dividends	13
Net income available to common shareholders	$ 587	$ 709
Earnings per common share:
Net income available to common shareholders per common share - Basic (in dollars per share)	$ 1.31	$ 1.49
Weighted average common shares - Basic (in shares)	446.4	475.4
Net income available to common shareholders per common share - Diluted (in dollars per share)	$ 1.30	$ 1.47
Weighted average common shares - Diluted (in shares)	452.8	480.8
Cash dividends declared per common share (in dollars per share)	$ 0.28	$ 0.25