Condensed Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement Of Income And Comprehensive Income [Abstract]
Net (loss) income	$ (298)	$ 37	$ (268)	$ 2
Other comprehensive (loss) income, net of income taxes:
Net change in fair value of available-for-sale debt securities, net of tax	(6)	1	(14)	(3)
Amortization and recognition of unrecognized pension cost components, net of tax				1
Other comprehensive (loss) income	(6)	1	(14)	(2)
Comprehensive (loss) income	(304)	38	(282)
Less: Comprehensive income attributable to noncontrolling interests	28	31	59	60
Comprehensive (loss) income attributable to Community Health Systems, Inc. stockholders	$ (332)	$ 7	$ (341)	$ (60)