Consolidated Statements Of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash Flows From Operating Activities
Net Income (Loss)	$ (486)	$ 2,946	$ 1,216
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other	127	118	109
Investment gains and losses, net	1,493	(2,353)	(851)
Interest credited to contract holders	43	45	43
Deferred income tax expense	(355)	477	136
Changes in:
Premiums and reinsurance receivable	(340)	(240)	(23)
Deferred policy acquisition costs	(96)	(73)	(39)
Other assets	28	(11)	(26)
Loss and loss expense reserves	1,095	559	599
Life policy and investment contract reserves	77	99	116
Unearned premiums	418	311	172
Other liabilities	88	128	(5)
Current income tax receivable/payable	(40)	(25)	44
Net cash provided by operating activities	2,052	1,981	1,491
Cash Flows From Investing Activities
Sale, call or maturity of fixed maturities	1,113	1,461	1,091
Sale of equity securities	430	136	515
Purchase of fixed maturities	(1,901)	(2,388)	(1,382)
Purchase of equity securities	(466)	(313)	(699)
Payments to acquire (proceeds from sale and collection of) finance receivables	7	(2)	(15)
Investment in buildings and equipment	(15)	(15)	(20)
Change in other invested assets, net	(101)	64	(50)
Net cash used in investing activities	(933)	(1,057)	(560)
Cash Flows From Financing Activities
Payment of cash dividends to shareholders	(423)	(395)	(375)
Shares acquired - share repurchase authorization	(410)	(144)	(261)
Changes in note payable	(4)	0	15
Proceeds from stock options exercised	10	13	7
Contract holders' funds deposited	70	85	85
Contract holders' funds withdrawn	(144)	(146)	(159)
Other	(93)	(98)	(110)
Net cash used in financing activities	(994)	(685)	(798)
Net change in cash and cash equivalents	125	239	133
Cash and cash equivalents at beginning of year	1,139	900	767
Cash and cash equivalents at end of year	1,264	1,139	900
Supplemental Disclosures of Cash Flow Information
Interest paid	53	52	53
Income taxes paid	165	257	84
Noncash Activities
Equipment acquired under finance lease obligations	17	12	19
Share-based compensation	27	26	19
Other assets and other liabilities	$ 115	$ 87	$ 57