Stockholders' Deficit - Schedule of Impact of Noncontrolling Interest to Stockholders' Deficit (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Equity [Abstract]
Net Income (Loss)	$ (133)	$ 46	$ 230
Net increase (decrease) in Community Health Systems, Inc. paid-in-capital for purchase of subsidiary partnership interests	5	(6)	17
Net transfers to the noncontrolling interests	5	(6)	17
Change to Community Health Systems, Inc. stockholders' deficit from net (loss) income attributable to Community Health Systems, Inc. stockholders and transfers to noncontrolling interests	$ (128)	$ 40	$ 247