Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash Flows From Operating Activities
Net Income	$ 1,123	$ 186
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	36	32
Investment gains and losses, net	(1,022)	90
Share-based compensation	16	16
Interest credited to contract holders'	21	23
Deferred income tax expense	218	(33)
Changes in:
Investment income receivable	2	4
Premiums and reinsurance receivable	(231)	(129)
Deferred policy acquisition costs	(68)	(41)
Other assets	(47)	(14)
Loss and loss expense reserves	25	195
Life policy and investment contract reserves	52	47
Unearned premiums	292	174
Other liabilities	(8)	(85)
Current income tax receivable/payable	67	(1)
Net cash provided by operating activities	476	464
Cash Flows From Investing Activities
Sale of fixed maturities	52	5
Call or maturity of fixed maturities	625	674
Sale of equity securities	142	134
Purchase of fixed maturities	(765)	(905)
Purchase of equity securities	(212)	(149)
Investment in finance receivables	(17)	(16)
Collection of finance receivables	13	12
Change in other invested assets, net	(41)	(11)
Net cash used in investing activities	(216)	(265)
Cash Flows From Financing Activities
Payment of cash dividends to shareholders	(175)	(166)
Shares acquired - share repurchase authorization	0	(125)
Proceeds from (Repayments of) Notes Payable	5	37
Proceeds from stock options exercised	7	5
Contract holders' funds withdrawn	(93)	(88)
Other	(29)	(41)
Net cash used in financing activities	(241)	(335)
Net change in cash and cash equivalents	19	(136)
Cash and cash equivalents at beginning of year	784	657
Cash and cash equivalents at end of period	803	521
Supplemental Disclosures of Cash Flow Information:
Contract holders' funds deposited	44	43
Investment in buildings and equipment	(13)	(9)
Interest paid	27	26
Income taxes received (paid)	13	(60)
Noncash Activities
Conversion of securities	0	3
Equipment acquired under capital lease obligations	7	8
Cashless exercise of stock options	7	3
Other assets and other liabilities	$ 28	$ 28