Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities
Net income	$ 1,365	$ 2,023
Adjustments to reconcile net income to net cash provided by operating activities:
Net realized investment losses	94	211
Depreciation and amortization	552	639
Deferred federal income tax benefit	(107)	(130)
Amortization of deferred acquisition costs	4,585	4,081
Equity in income from other investments	(144)	(319)
Premiums receivable	(1,422)	(861)
Reinsurance recoverables	(204)	185
Deferred acquisition costs	(5,079)	(4,419)
Claims and claim adjustment expense reserves	3,053	1,694
Unearned premium reserves	2,817	2,033
Other operating activities	97	(12)
Net cash provided by operating activities	5,607	5,125
Cash flows from investing activities
Proceeds from maturities of fixed maturities	4,909	5,481
Proceeds from sales of investments:
Fixed maturities	4,619	3,951
Equity securities	117	104
Real estate investments	0	10
Other investments	166	242
Purchases of investments:
Fixed maturities	(13,054)	(12,100)
Equity securities	(80)	(112)
Real estate investments	(46)	(28)
Other investments	(375)	(414)
Net purchases of short-term securities	(1,018)	(107)
Securities transactions in the course of settlement	60	214
Acquisition, net of cash acquired	0	(4)
Other investing activities	(335)	(291)
Net cash used in investing activities	(5,037)	(3,054)
Cash flows from financing activities
Treasury stock acquired — share repurchase authorizations	(894)	(1,500)
Treasury stock acquired — net employee share-based compensation	(63)	(60)
Dividends paid to shareholders	(676)	(656)
Issuance of debt	738	0
Issuance of common stock — employee share options	117	205
Net cash used in financing activities	(778)	(2,011)
Effect of exchange rate changes on cash	2	(48)
Net increase (decrease) in cash	(206)	12
Cash at beginning of year	799	761
Cash at end of period	593	773
Supplemental disclosure of cash flow information
Income taxes paid	152	663
Interest paid	$ 234	$ 234