Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities
Net income	$ 1,569	$ 1,667
Adjustments to reconcile net income to net cash provided by operating activities:
Net realized investment (gains) losses	118	(105)
Depreciation and amortization	444	450
Deferred federal income tax expense (benefit)	(28)	57
Amortization of deferred acquisition costs	2,675	2,461
Equity in income from other investments	(295)	(513)
Premiums receivable	(1,071)	(718)
Reinsurance recoverables	(84)	154
Deferred acquisition costs	(2,917)	(2,601)
Claims and claim adjustment expense reserves	1,272	1,313
Unearned premium reserves	1,398	968
Other operating activities	(440)	(94)
Net cash provided by operating activities	2,641	3,039
Cash flows from investing activities
Proceeds from maturities of fixed maturities	3,697	4,347
Proceeds from sales of investments:
Fixed maturities	2,701	2,482
Equity securities	84	45
Other investments	173	195
Purchases of investments:
Fixed maturities	(7,998)	(9,462)
Equity securities	(86)	(41)
Real estate investments	(16)	(14)
Other investments	(252)	(221)
Net sales (purchases) of short-term securities	257	(194)
Securities transactions in the course of settlement	236	229
Acquisitions, net of cash acquired	(4)	(38)
Other investing activities	(159)	(113)
Net cash used in investing activities	(1,367)	(2,785)
Cash flows from financing activities
Treasury stock acquired — share repurchase authorizations	(1,000)	(756)
Treasury stock acquired — net employee share-based compensation	(59)	(42)
Dividends paid to shareholders	(436)	(436)
Issuance of debt	0	739
Issuance of common stock — employee share options	194	206
Net cash used in financing activities	(1,301)	(289)
Effect of exchange rate changes on cash	(24)	3
Net decrease in cash	(51)	(32)
Cash at beginning of year	761	721
Cash at end of period	710	689
Supplemental disclosure of cash flow information
Income taxes paid	552	342
Interest paid	$ 174	$ 163