Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net income	$ 1,465	$ 1,580
Decrease in cash from operating assets and liabilities:
Accounts receivable	(427)	(371)
Inventories and other assets	(121)	(85)
Accounts payable and accrued expenses	(771)	(371)
Depreciation and amortization	732	697
Income taxes	346	406
Gains on sales of facilities	(10)	(2)
Amortization of debt issuance costs and discounts	7	8
Share-based compensation	86	97
Other	38	29
Net cash provided by operating activities	1,345	1,988
Cash flows from investing activities:
Purchase of property and equipment	(861)	(654)
Acquisition of hospitals and health care entities	(2)	(22)
Sales of hospitals and health care entities	14	20
Change in investments	10	(2)
Other	(6)	9
Net cash used in investing activities	(845)	(649)
Cash flows from financing activities:
Issuance of long-term debt	5,966	0
Net change in revolving credit facilities	(2,780)	80
Repayment of long-term debt	(66)	(47)
Distributions to noncontrolling interests	(171)	(234)
Payment of debt issuance costs	(49)	0
Payment of dividends	(177)	(169)
Repurchase of common stock	(2,101)	(1,527)
Other	(197)	(207)
Net cash provided by (used in) financing activities	425	(2,104)
Effect of exchange rate changes on cash and cash equivalents	(5)	2
Change in cash and cash equivalents	920	(763)
Cash and cash equivalents at beginning of period	1,451	1,793
Cash and cash equivalents at end of period	2,371	1,030
Interest payments	408	375
Income tax payments, (refunds), net	$ 3	$ (13)