Consolidated Balance Sheet (Unaudited) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Assets:
Cash and cash equivalents	$ 1,271	$ 1,705
Investments:
Fixed maturities, available for sale at fair value (amortized cost — $23,740 and $22,083)	25,035	24,118
Fixed maturities, trading at fair value	293	321
Equity securities, at fair value (cost — $984 and $778)	1,199	939
Mortgage loans	599	607
Policy loans	242	228
Real estate and other investments	623	531
Total cash and investments	29,262	28,449
Recoverables from reinsurers	3,044	3,750
Prepaid reinsurance premiums	520	471
Agents' balances and premiums receivable	754	636
Deferred policy acquisition costs	818	550
Assets of managed investment entities	2,973	3,225
Other receivables	422	539
Variable annuity assets (separate accounts)	608	580
Other assets	828	786
Goodwill	185	185
Total assets	39,414	39,171
Liabilities and Equity:
Unpaid losses and loss adjustment expenses	6,098	6,845
Unearned premiums	1,789	1,651
Annuity benefits accumulated	18,848	17,609
Life, accident and health reserves	2,017	2,059
Payable to reinsurers	367	475
Liabilities of managed investment entities	2,603	2,892
Long-term debt	949	953
Variable annuity liabilities (separate accounts)	608	580
Other liabilities	1,497	1,359
Total liabilities	34,776	34,423
Shareholders' equity:
Common Stock, no par value - 200,000,000 shares authorized - 88,820,940 and 88,979,303 shares outstanding	89	89
Capital surplus	1,088	1,063
Retained earnings:
Appropriated - managed investment entities	33	75
Unappropriated	2,664	2,520
Accumulated other comprehensive income, net of tax	599	831
Total shareholders' equity	4,473	4,578
Noncontrolling interests	165	170
Total equity	4,638	4,748
Total liabilities and equity	$ 39,414	$ 39,171