Condensed Financial Information of Parent Company - Condensed Statements of (Loss) Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Condensed Income Statements Captions [Line Items]
Net operating revenues	$ 12,490	$ 12,211	$ 12,368
Operating costs and expenses:
Salaries and benefits	5,415	5,330	5,242
Supplies	1,993	1,975	2,042
Other operating expenses	3,388	3,336	2,958
Pandemic relief funds		(173)	(148)
Depreciation and amortization	505	534	540
Impairment and (gain) loss on sale of businesses, net	(87)	71	24
Total operating costs and expenses	11,533	11,390	10,966
Income from operations	957	821	1,402
Interest expense, net	830	858	885
Gain (loss) on early extinguishment of debt	72	253	(79)
(Loss) income before income taxes	207	349	499
Provision for income taxes	191	170	131
Net (loss) income	16	179	368
Less: Net income attributable to noncontrolling interests	149	133	138
Net (loss) income attributable to Community Health Systems, Inc. stockholders	(133)	46	230
Parent Company
Operating costs and expenses:
Equity in loss (earnings) of unconsolidated affiliates	133	(46)	(230)
(Loss) income before income taxes	(133)	46	230
Net (loss) income	(133)	46	230
Net (loss) income attributable to Community Health Systems, Inc. stockholders	$ (133)	$ 46	$ 230