Consolidated Statement of Earnings (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenues:
Property and casualty insurance premiums	$ 640	$ 609	$ 1,243	$ 1,208
Life, accident and health premiums	105	107	210	217
Investment income	332	306	654	606
Realized gains (losses) on:
Securities	16	19	60	19
Subsidiaries	(1)		(1)	(3)
Income (loss) of managed investment entities:
Investment income	32	26	61	51
Loss on change in fair value of assets/liabilities	(21)	(22)	(50)	(55)
Other income	47	48	86	89
Total revenues	1,150	1,093	2,263	2,132
Costs and Expenses:
Property and casualty insurance losses and loss adjustment expenses	363	413	707	754
Property and casualty insurance commissions and other underwriting expenses	232	217	443	420
Annuity benefits	147	125	277	241
Life, accident and health benefits	84	89	176	185
Annuity and supplemental insurance acquisition expenses	48	49	95	99
Interest charges on borrowed money	21	21	42	42
Expenses of managed investment entities	20	18	39	36
Other operating and general expenses	99	101	202	193
Total costs and expenses	1,014	1,033	1,981	1,970
Operating earnings before income taxes	136	60	282	162
Provision for income taxes	52	30	110	78
Net earnings, including noncontrolling interests	84	30	172	84
Less: Net earnings (loss) attributable to noncontrolling interests	(15)	(18)	(40)	(52)
Net Earnings Attributable to Shareholders	99	48	212	136
Earnings Attributable to Shareholders per Common Share:
Basic	$ 1.02	$ 0.47	$ 2.18	$ 1.31
Diluted	$ 1.01	$ 0.46	$ 2.15	$ 1.29
Average number of Common Shares:
Basic	96.4	102.7	97.0	103.7
Diluted	98.0	104.4	98.7	105.3
Cash dividends per Common Share	$ 0.175	$ 0.1625	$ 0.35	$ 0.325
Supplemental disclosure of Realized gains (losses) on securities:
Realized gains before impairments	23	40	71	50
Losses on securities with impairment	(7)	(10)	(12)	(17)
Non-credit portion recognized in other comprehensive income (loss)		(11)	1	(14)
Impairment charges recognized in earnings	(7)	(21)	(11)	(31)
Total realized gains on securities	$ 16	$ 19	$ 60	$ 19