Consolidated Statements Of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Operating activities
Net income	$ 3,860	$ 3,413
Adjustments to reconcile net income to net cash provided by operating activities:
Net losses on financial instruments	234	382
Equity in net earnings of other invested assets	73	(258)
Depreciation and amortization	895	751
Deferred income taxes	(393)	(181)
Share-based compensation	139	122
Changes in operating assets and liabilities:
Receivables, net	(299)	(662)
Other invested assets	(42)	32
Other assets	(529)	(412)
Policy liabilities	583	1,548
Unearned income	3,346	(182)
Accounts payable and other liabilities	160	632
Income taxes	391	(159)
Other, net	1	(33)
Net cash provided by operating activities	8,419	4,993
Investing activities
Purchases of investments	(17,648)	(13,253)
Proceeds from sale of investments	5,339	7,140
Maturities, calls and redemptions from investments	10,656	4,347
Changes in securities lending collateral	145	(620)
Purchases of subsidiaries, net of cash acquired	(1,651)	(609)
Purchases of property and equipment	(651)	(549)
Other, net	(46)	(58)
Net cash used in investing activities	(3,856)	(3,602)
Financing activities
Net proceeds from commercial paper borrowings	90	250
Proceeds from long-term borrowings	2,574	1,300
Repayments of long-term borrowings	(1,908)	(943)
Proceeds from short-term borrowings	0	1,275
Repayments of Short-term Debt	(90)	(1,375)
Changes in securities lending payable	(145)	620
Changes in bank overdrafts	(500)	817
Repurchase and retirement of common stock	(1,268)	(1,169)
Cash dividends	(701)	(618)
Proceeds from issuance of common stock under employee stock plans	81	116
Taxes paid through withholding of common stock under employee stock plans	(99)	(88)
Other, net	5	10
Net cash (used in) provided by financing activities	(1,961)	195
Effect of foreign exchange rates on cash and cash equivalents	2	(10)
Change in cash and cash equivalents	2,604	1,576
Cash and cash equivalents at beginning of period	7,387	4,880
Cash and cash equivalents at end of period	$ 9,991	$ 6,456