Condensed Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES
NET INCOME	$ 229	$ 30
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other non-cash items	32	38
Realized gains on investments, net	(29)	(77)
Stock-based compensation	12	10
Interest credited to contract holders	25	38
Deferred income tax (benefit) expense	4	(34)
Changes in:
Investment income receivable	3	2
Premiums and reinsurance receivable	(129)	(231)
Deferred policy acquisition costs	(37)	(30)
Other assets	(4)	(1)
Loss and loss expense reserves	5	321
Life policy reserves	53	89
Unearned premiums	185	104
Other liabilities	33	(49)
Current income tax receivable/payable	51	(62)
Net cash provided by operating activities	433	148
CASH FLOWS FROM INVESTING ACTIVITIES
Sale of fixed maturities	131	47
Call or maturity of fixed maturities	689	592
Sale of equity securities	165	410
Purchase of fixed maturities	(914)	(934)
Purchase of equity securities	(325)	(179)
Investment in buildings and equipment, net	(5)	(12)
Investment in finance receivables	(24)	(23)
Collection of finance receivables	24	23
Change in other invested assets, net	2	5
Net cash used in investing activities	(257)	(71)
CASH FLOWS FROM FINANCING ACTIVITIES
Payment of cash dividends to shareholders	(191)	(191)
Purchase of treasury shares		(30)
Increase in notes payable		55
Proceeds from stock options exercised	6
Contract holders' funds deposited	79	81
Contract holders' funds withdrawn	(83)	(64)
Excess tax benefits on share-based compensation	1	3
Other	(10)	(8)
Net cash used in financing activities	(198)	(154)
Net change in cash and cash equivalents	(22)	(77)
Cash and cash equivalents at beginning of year	438	385
Cash and cash equivalents at end of period	416	308
Supplemental disclosures of cash flow information:
Interest paid	28	27
Income taxes paid	8	53
Non-cash activities:
Conversion of securities	21
Equipment acquired under capital lease obligations	20	24
Cashless exercise of stock options	$ 7