Condensed Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Cash Flows From Operating Activities
Net Income	$ 128	$ 91
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	14	13
Realized investment gains, net	(47)	(22)
Stock-based compensation	7	6
Interest credited to contract holders	12	10
Deferred income tax expense	0	8
Changes in:
Investment income receivable	0	5
Premiums and reinsurance receivable	(22)	(50)
Deferred policy acquisition costs	2	(5)
Other assets	4	(5)
Loss and loss expense reserves	138	64
Life policy reserves	20	49
Unearned premiums	27	59
Other liabilities	(100)	(102)
Current income tax receivable/payable	32	8
Net cash provided by operating activities	215	129
Cash Flows From Investing Activities
Sale of fixed maturities	13	24
Call or maturity of fixed maturities	267	252
Sale of equity securities	67	31
Purchase of fixed maturities	(348)	(236)
Purchase of equity securities	(67)	(33)
Purchase of short-term investments	(25)	0
Investment in finance receivables	(3)	(4)
Collection of finance receivables	8	7
Investment in buildings and equipment, net	(1)	(3)
Change in other invested assets, net	1	1
Net cash (used in) provided by investing activities	(88)	39
Cash Flows From Financing Activities
Payment of cash dividends to shareholders	(71)	(67)
Purchase of treasury shares	0	(7)
Proceeds from stock options exercised	7	8
Contract holders' funds deposited	20	20
Contract holders' funds withdrawn	(33)	(32)
Excess tax benefits on stock-based compensation	3	0
Other	(4)	(2)
Net cash used in financing activities	(78)	(80)
Net change in cash and cash equivalents	49	88
Cash and cash equivalents at beginning of year	591	433
Cash and cash equivalents at end of period	640	521
Supplemental Disclosures of Cash Flow Information:
Income taxes paid	11	11
Noncash Activities:
Equipment acquired under capital lease obligations	3	5
Cashless exercise of stock options	$ 5	$ 4