Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities
Net income	$ 961	$ 1,569
Adjustments to reconcile net income to net cash provided by operating activities:
Net realized investment losses	29	118
Depreciation and amortization	383	444
Deferred federal income tax benefit	(64)	(28)
Amortization of deferred acquisition costs	2,981	2,675
Equity in income from other investments	(85)	(295)
Premiums receivable	(1,389)	(1,071)
Reinsurance recoverables	(41)	(84)
Deferred acquisition costs	(3,351)	(2,917)
Claims and claim adjustment expense reserves	1,794	1,272
Unearned premium reserves	1,935	1,398
Other operating activities	(592)	(440)
Net cash provided by operating activities	2,561	2,641
Cash flows from investing activities
Proceeds from maturities of fixed maturities	3,031	3,697
Proceeds from sales of investments:
Fixed maturities	3,115	2,701
Equity securities	90	84
Other investments	100	173
Purchases of investments:
Fixed maturities	(7,663)	(7,998)
Equity securities	(50)	(86)
Real estate investments	(26)	(16)
Other investments	(255)	(252)
Net sales (purchases) of short-term securities	(418)	257
Securities transactions in the course of settlement	15	236
Acquisition, net of cash acquired	0	(4)
Other investing activities	(251)	(159)
Net cash used in investing activities	(2,312)	(1,367)
Cash flows from financing activities
Treasury stock acquired — share repurchase authorizations	(794)	(1,000)
Treasury stock acquired — net employee share-based compensation	(62)	(59)
Dividends paid to shareholders	(447)	(436)
Issuance of debt	738	0
Issuance of common stock — employee share options	110	194
Net cash used in financing activities	(455)	(1,301)
Effect of exchange rate changes on cash	12	(24)
Net decrease in cash	(194)	(51)
Cash at beginning of year	799	761
Cash at end of period	605	710
Supplemental disclosure of cash flow information
Income taxes paid	139	552
Interest paid	$ 175	$ 174