CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues
Property-liability insurance premiums (net of reinsurance ceded of $1,069, $1,090 and $1,098)	$ 27,618	$ 26,737	$ 25,942
Life and annuity premiums and contract charges (net of reinsurance ceded of $639, $674 and $750)	2,352	2,241	2,238
Net investment income	3,943	4,010	3,971
Realized capital gains and losses:
Total other-than-temporary impairment losses	(207)	(239)	(563)
Portion of loss recognized in other comprehensive income	(8)	6	(33)
Net other-than-temporary impairment losses recognized in earnings	(215)	(233)	(596)
Sales and other realized capital gains and losses	809	560	1,099
Total realized capital gains and losses	594	327	503
Total revenues	34,507	33,315	32,654
Costs and expenses
Property-liability insurance claims and claims expense (net of reinsurance ceded of $1,717, $2,051 and $927)	17,911	18,484	20,161
Life and annuity contract benefits (net of reinsurance ceded of $355, $665 and $653)	1,917	1,818	1,761
Interest credited to contractholder funds (net of reinsurance ceded of $27, $28 and $27)	1,278	1,316	1,645
Amortization of deferred policy acquisition costs	4,002	3,884	3,971
Operating costs and expenses	4,387	4,118	3,739
Restructuring and related charges	70	34	44
Loss on extinguishment of debt	491
Interest expense	367	373	367
Total costs and expenses	30,423	30,027	31,688
(Loss) gain on disposition of operations	(688)	18	(7)
Income from operations before income tax expense	3,396	3,306	959
Income tax expense	1,116	1,000	172
Net income	2,280	2,306	787
Preferred stock dividends	17
Net income available to common shareholders	$ 2,263	$ 2,306	$ 787
Earnings per common share:
Net income available to common shareholders per common share - Basic (in dollars per share)	$ 4.87	$ 4.71	$ 1.51
Weighted average common shares - Basic (in shares)	464.4	489.4	520.7
Net income available to common shareholders per common share - Diluted (in dollars per share)	$ 4.81	$ 4.68	$ 1.50
Weighted average common shares - Diluted (in shares)	470.3	493.0	523.1
Cash dividends declared per common share (in dollars per share)	$ 1.00	$ 0.88	$ 0.84