Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating activities
Net earnings	$ 5,148	$ 4,978
Noncash items:
Depreciation and amortization	788	758
Deferred income taxes	161	341
Share-based compensation	299	256
Other, net	17	(55)
Net change in other operating items, net of effects from acquisitions and changes in AARP balances:
Accounts receivable	(4,521)	(2,895)
Other assets	(1,089)	(955)
Medical costs payable	3,849	2,968
Accounts payable and other liabilities	589	870
Unearned revenues	78	(261)
Cash flows from operating activities	5,319	6,005
Investing activities
Purchases of investments	(4,982)	(4,612)
Sales of investments	1,591	643
Maturities of investments	1,759	2,255
Cash paid for acquisitions, net of cash assumed	(1,231)	(1,193)
Purchases of property, equipment and capitalized software	(555)	(568)
Other, net	(255)	(232)
Cash flows used for investing activities	(3,673)	(3,707)
Financing activities
Common share repurchases	(2,500)	(1,650)
Cash dividends paid	(1,363)	(1,181)
Proceeds from common stock issuances	551	436
Repayments of long-term debt	(1,100)	(1,150)
Proceeds from short-term borrowings, net	3,148	4,057
Customer funds administered	5,120	2,131
Other, net	(1,552)	(1,856)
Cash flows from financing activities	2,304	787
Effect of exchange rate on cash and cash equivalents	157	(51)
Increase in cash and cash equivalents	4,107	3,034
Cash, and cash equivalents, beginning of period	21,375	16,921
Cash and cash equivalents, end of period	$ 25,482	$ 19,955