CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Revenues
Property-liability insurance premiums	$ 7,426	$ 7,064
Life and annuity premiums and contract charges	537	607
Net investment income	850	959
Realized capital gains and losses:
Total other-than-temporary impairment (“OTTI”) losses	(53)	(80)
OTTI losses reclassified to (from) other comprehensive income	4	(1)
Net OTTI losses recognized in earnings	(49)	(81)
Sales and other realized capital gains and losses	188	135
Total realized capital gains and losses	139	54
Total revenues	8,952	8,684
Costs and expenses
Property-liability insurance claims and claims expense	4,993	4,759
Life and annuity contract benefits	441	488
Interest credited to contractholder funds	199	307
Amortization of deferred policy acquisition costs	1,070	1,035
Operating costs and expenses	1,090	1,094
Restructuring and related charges	4	6
Interest expense	73	87
Costs and expenses	7,870	7,776
Loss on disposition of operations	(1)	(59)
Income from operations before income tax expense	1,081	849
Income tax expense	404	249
Net income	677	600
Preferred stock dividends	29	13
Net income available to common shareholders	$ 648	$ 587
Earnings per common share:
Net income available to common shareholders per common share - Basic (in dollars per share)	$ 1.56	$ 1.31
Weighted average common shares - Basic (in shares)	415.8	446.4
Net income available to common shareholders per common share - Diluted (in dollars per share)	$ 1.53	$ 1.30
Weighted average common shares - Diluted (in shares)	422.6	452.8
Cash dividends declared per common share	$ 0.30	$ 0.28