Condensed Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
NET INCOME	$ 264	$ 118
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	20	22
Realized gains on investments, net	(55)	(19)
Stock-based compensation	10	8
Interest credited to contract holders	22	18
Deferred income tax expense (benefit)	10	(3)
Changes in:
Investment income receivable	(1)	1
Premiums and reinsurance receivable	(103)	(76)
Deferred policy acquisition costs	(39)	(26)
Other assets	(10)	(11)
Loss and loss expense reserves	54	57
Life policy reserves	33	33
Unearned premiums	155	129
Other liabilities	(39)	7
Current income tax receivable	(70)	7
Net cash provided by operating activities	251	265
CASH FLOWS FROM INVESTING ACTIVITIES
Sale of fixed maturities	14	28
Call or maturity of fixed maturities	459	360
Sale of equity securities	157	124
Purchase of fixed maturities	(666)	(603)
Purchase of equity securities	(190)	(210)
Investment in buildings and equipment, net	(3)	(4)
Investment in finance receivables	(18)	(18)
Collection of finance receivables	14	16
Change in other invested assets, net	3	3
Net cash used in investing activities	(230)	(304)
CASH FLOWS FROM FINANCING ACTIVITIES
Payment of cash dividends to shareholders	(130)	(128)
Proceeds from stock options exercised	12	3
Contract holders' funds deposited	45	56
Contract holders' funds withdrawn	(55)	(62)
Excess tax benefits on stock-based compensation	9	1
Other	(7)	(6)
Net cash used in financing activities	(126)	(136)
Net change in cash and cash equivalents	(105)	(175)
Cash and cash equivalents at beginning of year	487	438
Cash and cash equivalents at end of period	382	263
Supplemental disclosures of cash flow information:
Interest paid	27	27
Income taxes paid	158	19
Non-cash activities:
Conversion of securities	54	13
Equipment acquired under capital lease obligations	17	9
Cashless exercise of stock options	$ 15	$ 0