Condensed Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ 0	$ 144	$ (267)	$ 146
Other comprehensive (loss) income, net of income taxes:
Net change in fair value of available-for-sale debt securities, net of tax	(6)	(1)	(20)	(4)
Amortization and recognition of unrecognized pension cost components, net of tax	0	2	1	3
Other comprehensive (loss) income	(6)	1	(19)	(1)
Comprehensive (loss) income	(6)	145	(286)	145
Less: Comprehensive income attributable to noncontrolling interests	42	33	102	94
Comprehensive (loss) income attributable to Community Health Systems, Inc. stockholders	$ (48)	$ 112	$ (388)	$ 51